💎一站式轻松地调用各大LLM模型接口,支持GPT4、智谱、豆包、星火、月之暗面及文生图、文生视频 广告
# API ``` <pre class="calibre29">``` $redis <span class="token1">=</span> <span class="token5">new</span> <span class="token4">Redis</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">connect</span><span class="token3">(</span><span class="token2">'localhost'</span><span class="token3">,</span> <span class="token6">6379</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//普通set/get操作</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'library'</span><span class="token3">,</span> <span class="token2">'predis'</span><span class="token3">)</span><span class="token3">;</span> $retval <span class="token1">=</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">get</span><span class="token3">(</span><span class="token2">'library'</span><span class="token3">)</span><span class="token3">;</span> echo $retval<span class="token3">;</span> <span class="token">//显示 'predis'</span> <span class="token">//setex set一个存储时效</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">setex</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span> <span class="token6">10</span><span class="token3">,</span> <span class="token2">'bar'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//表示存储有效期为10秒</span> <span class="token">//setnx/msetnx相当于add操作,不会覆盖已有值</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">setnx</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token6">12</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">setnx</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token6">34</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//false</span> <span class="token">//getset操作,set的变种,结果返回替换前的值</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">getset</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token6">56</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回34</span> <span class="token">// incrby/incr/decrby/decr 对值的递增和递减</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">incr</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//foo为57</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">incrby</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//foo为59</span> <span class="token">//exists检测是否存在某值</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">exists</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//true</span> <span class="token">//del 删除</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">del</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//true</span> <span class="token">//type 类型检测,字符串返回string(1),列表返回 list(3),set表返回set(2)/zset(4),hash表返回hash(5)</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">type</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//不存在,返回none</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token2">'test'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">type</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//字符串,返回string</span> <span class="token">//append 连接到已存在字符串</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">append</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token2">'_123'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回累加后的字符串长度8,此进str为 'test_123'</span> <span class="token">//setrange 部分替换操作</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">setrange</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token2">'abc'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回3,参数2为0时等同于set操作</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">setrange</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">,</span><span class="token2">'cd'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回4,表示从第2个字符后替换,这时'str'为'abcd'</span> <span class="token">//substr 部分获取操作</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">substr</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token6">2</span><span class="token3">)</span><span class="token3">;</span><span class="token">//表示从第0个起,取到第2个字符,共3个,返回'abc'</span> <span class="token">//strlen 获取字符串长度</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">strlen</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回4</span> <span class="token">//keys 模糊查找功能,支持*号以及?号(匹配一个字符)</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'foo1'</span><span class="token3">,</span><span class="token6">123</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'foo2'</span><span class="token3">,</span><span class="token6">456</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">keys</span><span class="token3">(</span><span class="token2">'foo*'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回foo1和foo2的array</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">keys</span><span class="token3">(</span><span class="token2">'f?o?'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//同上</span> <span class="token">//randomkey 随机返回一个key</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">randomkey</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//可能是返回 'foo1'或者是'foo2'及其它任何一存在redis的key</span> <span class="token">//rename/renamenx 对key进行改名,所不同的是renamenx不允许改成已存在的key</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rename</span><span class="token3">(</span><span class="token2">'str'</span><span class="token3">,</span><span class="token2">'str2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//把原先命名为'str'的key改成了'str2'</span> <span class="token">//expire 设置key-value的时效性,ttl 获取剩余有效期,persist 重新设置为永久存储</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">expire</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span> <span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//设置有效期为1秒</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">ttl</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回有效期值1s</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">expire</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//取消expire行为</span> <span class="token">//dbsize 返回redis当前数据库的记录总数 </span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">dbsize</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">/** hash表操作 */</span> <span class="token">//hset/hget 存取hash表的数据</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hset</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key1'</span><span class="token3">,</span><span class="token2">'v1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//将key为'key1' value为'v1'的元素存入hash1表</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hset</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key2'</span><span class="token3">,</span><span class="token2">'v2'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hget</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//取出表'hash1'中的key 'key1'的值,返回'v1'</span> <span class="token">//hexists 返回hash表中的指定key是否存在</span> $redis<span class="token1">-</span><span class="token1">></span>hexists <span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true or false</span> <span class="token">//hdel 删除hash表中指定key的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hdel</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true or false</span> <span class="token">//hlen 返回hash表元素个数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hlen</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//1</span> <span class="token">//hsetnx 增加一个元素,但不能重复</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hsetnx</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key1'</span><span class="token3">,</span><span class="token2">'v2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//false</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hsetnx</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key2'</span><span class="token3">,</span><span class="token2">'v2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true</span> <span class="token">//hmset/hmget 存取多个元素到hash表</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hmset</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'key3'</span><span class="token1">=</span><span class="token1">></span><span class="token2">'v3'</span><span class="token3">,</span><span class="token2">'key4'</span><span class="token1">=</span><span class="token1">></span><span class="token2">'v4'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hmget</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'key3'</span><span class="token3">,</span><span class="token2">'key4'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回相应的值 array('v3','v4')</span> <span class="token">//hincrby 对指定key进行累加</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hincrby</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key5'</span><span class="token3">,</span><span class="token6">3</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回3</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hincrby</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">,</span><span class="token2">'key5'</span><span class="token3">,</span><span class="token6">10</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回13</span> <span class="token">//hkeys 返回hash表中的所有key</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hkeys</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回array('key1','key2','key3','key4','key5')</span> <span class="token">//hvals 返回hash表中的所有value</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hvals</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回array('v1','v2','v3','v4',13)</span> <span class="token">//hgetall 返回整个hash表元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">hgetall</span><span class="token3">(</span><span class="token2">'hash1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回array('key1'=>'v1','key2'=>'v2','key3'=>'v3','key4'=>'v4','key5'=>13)</span> <span class="token">/* 队列操作 */</span> <span class="token">//rpush/rpushx 有序列表操作,从队列后插入元素</span> <span class="token">//lpush/lpushx 和rpush/rpushx的区别是插入到队列的头部,同上,'x'含义是只对已存在的key进行操作</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span> <span class="token2">'bar1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回一个列表的长度1</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lpush</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span> <span class="token2">'bar0'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回一个列表的长度2</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpushx</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span> <span class="token2">'bar2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回3,rpushx只对已存在的队列做添加,否则返回0</span> <span class="token">//llen返回当前列表长度</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">llen</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//3</span> <span class="token">//lrange 返回队列中一个区间的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lrange</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回数组包含第0个至第1个共2个元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lrange</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token1">-</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回第0个至倒数第一个,相当于返回所有元素,注意redis中很多时候会用到负数,下同</span> <span class="token">//lindex 返回指定顺序位置的list元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lindex</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回'bar1'</span> <span class="token">//lset 修改队列中指定位置的value</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lset</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span><span class="token6">1</span><span class="token3">,</span><span class="token2">'123'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//修改位置1的元素,返回true</span> <span class="token">//lrem 删除队列中左起指定数量的字符</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lrem</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span><span class="token6">1</span><span class="token3">,</span><span class="token2">'_'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//删除队列中左起1个字符'_'(若有)</span> <span class="token">//lpop/rpop 类似栈结构地弹出(并删除)最左或最右的一个元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lpop</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//'bar0'</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpop</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//'bar2'</span> <span class="token">//ltrim 队列修改,保留左边起若干元素,其余删除</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">ltrim</span><span class="token3">(</span><span class="token2">'fooList'</span><span class="token3">,</span> <span class="token6">0</span><span class="token3">,</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//保留左边起第0个至第1个元素</span> <span class="token">//rpoplpush 从一个队列中pop出元素并push到另一个队列</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'list1'</span><span class="token3">,</span><span class="token2">'ab0'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'list1'</span><span class="token3">,</span><span class="token2">'ab1'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'list2'</span><span class="token3">,</span><span class="token2">'ab2'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'list2'</span><span class="token3">,</span><span class="token2">'ab3'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpoplpush</span><span class="token3">(</span><span class="token2">'list1'</span><span class="token3">,</span><span class="token2">'list2'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//结果list1 =>array('ab0'),list2 =>array('ab1','ab2','ab3')</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpoplpush</span><span class="token3">(</span><span class="token2">'list2'</span><span class="token3">,</span><span class="token2">'list2'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//也适用于同一个队列,把最后一个元素移到头部list2 =>array('ab3','ab1','ab2')</span> <span class="token">//linsert 在队列的中间指定元素前或后插入元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">linsert</span><span class="token3">(</span><span class="token2">'list2'</span><span class="token3">,</span> <span class="token2">'before'</span><span class="token3">,</span><span class="token2">'ab1'</span><span class="token3">,</span><span class="token2">'123'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//表示在元素'ab1'之前插入'123'</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">linsert</span><span class="token3">(</span><span class="token2">'list2'</span><span class="token3">,</span> <span class="token2">'after'</span><span class="token3">,</span><span class="token2">'ab1'</span><span class="token3">,</span><span class="token2">'456'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//表示在元素'ab1'之后插入'456'</span> <span class="token">//blpop/brpop 阻塞并等待一个列队不为空时,再pop出最左或最右的一个元素(这个功能在php以外可以说非常好用)</span> <span class="token">//brpoplpush 同样是阻塞并等待操作,结果同rpoplpush一样</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">blpop</span><span class="token3">(</span><span class="token2">'list3'</span><span class="token3">,</span><span class="token6">10</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//如果list3为空则一直等待,直到不为空时将第一元素弹出,10秒后超时</span> <span class="token">/** set表操作 */</span> <span class="token">//sadd 增加元素,返回true,重复返回false</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sadd</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'ab'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sadd</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'cd'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sadd</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//srem 移除指定元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">srem</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'cd'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//删除'cd'元素</span> <span class="token">//spop 弹出首元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">spop</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//smove 移动当前set表的指定元素到另一个set表</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sadd</span><span class="token3">(</span><span class="token2">'set2'</span><span class="token3">,</span><span class="token2">'123'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">smove</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'set2'</span><span class="token3">,</span><span class="token2">'ab'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//移动'set1'中的'ab'到'set2',返回true or false</span> <span class="token">//scard 返回当前set表元素个数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">scard</span><span class="token3">(</span><span class="token2">'set2'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//2</span> <span class="token">//sismember 判断元素是否属于当前表</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sismember</span><span class="token3">(</span><span class="token2">'set2'</span><span class="token3">,</span><span class="token2">'123'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true or false</span> <span class="token">//smembers 返回当前表的所有元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">smembers</span><span class="token3">(</span><span class="token2">'set2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//array('123','ab');</span> <span class="token">//sinter/sunion/sdiff 返回两个表中元素的交集/并集/补集</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sadd</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'ab'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sinter</span><span class="token3">(</span><span class="token2">'set2'</span><span class="token3">,</span><span class="token2">'set1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回array('ab')</span> <span class="token">//sinterstore/sunionstore/sdiffstore 将两个表交集/并集/补集元素copy到第三个表中</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sinterstore</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token2">'set1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//这边等同于将'set1'的内容copy到'foo'中,并将'foo'转为set表</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sinterstore</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">,</span><span class="token2">'set2'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//将'set1'和'set2'中相同的元素copy到'foo'表中,覆盖'foo'原有内容</span> <span class="token">//srandmember 返回表中一个随机元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">srandmember</span><span class="token3">(</span><span class="token2">'set1'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">/** 有序set表操作 */</span> <span class="token">//sadd 增加元素,并设置序号,返回true,重复返回false</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zadd</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">1</span><span class="token3">,</span><span class="token2">'ab'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zadd</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">,</span><span class="token2">'cd'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zadd</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">3</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//zincrby 对指定元素索引值的增减,改变元素排列次序</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zincrby</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">10</span><span class="token3">,</span><span class="token2">'ab'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回11</span> <span class="token">//zrem 移除指定元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrem</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//true or false</span> <span class="token">//zrange 按位置次序返回表中指定区间的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrange</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回位置0和1之间(两个)的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrange</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token1">-</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回位置0和倒数第一个元素之间的元素(相当于所有元素)</span> <span class="token">//zrevrange 同上,返回表中指定区间的元素,按次序倒排</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrevrange</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token1">-</span><span class="token6">1</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//元素顺序和zrange相反</span> <span class="token">//zrangebyscore/zrevrangebyscore 按顺序/降序返回表中指定索引区间的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zadd</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">3</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zadd</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">5</span><span class="token3">,</span><span class="token2">'gh'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrangebyscore</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">,</span><span class="token6">9</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回索引值2-9之间的元素 array('ef','gh')</span> <span class="token">//参数形式</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrangebyscore</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">,</span><span class="token6">9</span><span class="token3">,</span><span class="token2">'withscores'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回索引值2-9之间的元素并包含索引值 array(array('ef',3),array('gh',5))</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrangebyscore</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">,</span><span class="token6">9</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'withscores'</span> <span class="token1">=</span><span class="token1">></span><span class="token6">true</span><span class="token3">,</span><span class="token2">'limit'</span><span class="token1">=</span><span class="token1">></span><span class="token4">array</span><span class="token3">(</span><span class="token6">1</span><span class="token3">,</span> <span class="token6">2</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回索引值2-9之间的元素,'withscores' =>true表示包含索引值; 'limit'=>array(1, 2),表示最多返回2条,结果为array(array('ef',3),array('gh',5))</span> <span class="token">//zunionstore/zinterstore 将多个表的并集/交集存入另一个表中</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zunionstore</span><span class="token3">(</span><span class="token2">'zset3'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'zset2'</span><span class="token3">,</span><span class="token2">'zset0'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//将'zset1','zset2','zset0'的并集存入'zset3'</span> <span class="token">//其它参数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zunionstore</span><span class="token3">(</span><span class="token2">'zset3'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'zset2'</span><span class="token3">)</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'weights'</span> <span class="token1">=</span><span class="token1">></span> <span class="token4">array</span><span class="token3">(</span><span class="token6">5</span><span class="token3">,</span><span class="token6">0</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span><span class="token">//weights参数表示权重,其中表示并集后值大于5的元素排在前,大于0的排在后</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zunionstore</span><span class="token3">(</span><span class="token2">'zset3'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'zset2'</span><span class="token3">)</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'aggregate'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'max'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span><span class="token">//'aggregate' => 'max'或'min'表示并集后相同的元素是取大值或是取小值</span> <span class="token">//zcount 统计一个索引区间的元素个数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zcount</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">3</span><span class="token3">,</span><span class="token6">5</span><span class="token3">)</span><span class="token3">;</span><span class="token">//2</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zcount</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'(3'</span><span class="token3">,</span><span class="token6">5</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//'(3'表示索引值在3-5之间但不含3,同理也可以使用'(5'表示上限为5但不含5</span> <span class="token">//zcard 统计元素个数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zcard</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//4</span> <span class="token">//zscore 查询元素的索引</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zscore</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//3</span> <span class="token">//zremrangebyscore 删除一个索引区间的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zremrangebyscore</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token6">2</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//删除索引在0-2之间的元素('ab','cd'),返回删除元素个数2</span> <span class="token">//zrank/zrevrank 返回元素所在表顺序/降序的位置(不是索引)</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zrank</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token2">'ef'</span><span class="token3">)</span><span class="token3">;</span><span class="token">//返回0,因为它是第一个元素;zrevrank则返回1(最后一个)</span> <span class="token">//zremrangebyrank 删除表中指定位置区间的元素</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">zremrangebyrank</span><span class="token3">(</span><span class="token2">'zset1'</span><span class="token3">,</span><span class="token6">0</span><span class="token3">,</span><span class="token6">10</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//删除位置为0-10的元素,返回删除的元素个数2</span> <span class="token">/** 排序操作 */</span> <span class="token">//sort 排序</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token6">3</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token6">2</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">rpush</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token6">17</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回array(2,3,17)</span> <span class="token">//使用参数,可组合使用 array('sort' => 'desc','limit' => array(1, 2))</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'sort'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'desc'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//降序排列,返回array(17,3,2)</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'limit'</span> <span class="token1">=</span><span class="token1">></span> <span class="token4">array</span><span class="token3">(</span><span class="token6">1</span><span class="token3">,</span> <span class="token6">2</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回顺序位置中1的元素2个(这里的2是指个数,而不是位置),返回array(3,17)</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'limit'</span> <span class="token1">=</span><span class="token1">></span> <span class="token4">array</span><span class="token3">(</span><span class="token2">'alpha'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">true</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//按首字符排序返回array(17,2,3),因为17的首字符是'1'所以排首位置</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'limit'</span> <span class="token1">=</span><span class="token1">></span> <span class="token4">array</span><span class="token3">(</span><span class="token2">'store'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'ordered'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//表示永久性排序,返回元素个数</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">sort</span><span class="token3">(</span><span class="token2">'tab'</span><span class="token3">,</span><span class="token4">array</span><span class="token3">(</span><span class="token2">'limit'</span> <span class="token1">=</span><span class="token1">></span> <span class="token4">array</span><span class="token3">(</span><span class="token2">'get'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'pre_*'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//使用了通配符'*'过滤元素,表示只返回以'pre_'开头的元素</span> <span class="token">/** redis管理操作 */</span> <span class="token">//select 指定要操作的数据库</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">select</span><span class="token3">(</span><span class="token2">'mydb'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//指定为mydb,不存在则创建</span> <span class="token">//flushdb 清空当前库</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">flushdb</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//move 移动当库的元素到其它库</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">set</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span> <span class="token2">'bar'</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">move</span><span class="token3">(</span><span class="token2">'foo'</span><span class="token3">,</span> <span class="token2">'mydb2'</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//若'mydb2'库存在</span> <span class="token">//info 显示服务当状态信息</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">info</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//slaveof 配置从服务器</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">slaveof</span><span class="token3">(</span><span class="token2">'127.0.0.1'</span><span class="token3">,</span><span class="token6">80</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//配置127.0.0.1端口80的服务器为从服务器</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">slaveof</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//清除从服务器</span> <span class="token">//同步保存服务器数据到磁盘</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">save</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//异步保存服务器数据到磁盘</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">bgsave</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//??</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">bgrewriteaof</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//返回最后更新磁盘的时间</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">lastsave</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//set/get多个key-value</span> $mkv <span class="token1">=</span> <span class="token4">array</span><span class="token3">(</span> <span class="token2">'usr:0001'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'First user'</span><span class="token3">,</span> <span class="token2">'usr:0002'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'Second user'</span><span class="token3">,</span> <span class="token2">'usr:0003'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'Third user'</span> <span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">mset</span><span class="token3">(</span>$mkv<span class="token3">)</span><span class="token3">;</span> <span class="token">//存储多个key对应的value</span> $retval <span class="token1">=</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">mget</span><span class="token3">(</span><span class="token4">array_keys</span><span class="token3">(</span>$mkv<span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//获取多个key对应的value</span> <span class="token4">print_r</span><span class="token3">(</span>$retval<span class="token3">)</span><span class="token3">;</span> <span class="token">//批量操作</span> $replies <span class="token1">=</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">pipeline</span><span class="token3">(</span><span class="token5">function</span><span class="token3">(</span>$pipe<span class="token3">)</span> <span class="token3">{</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">ping</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">flushdb</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">incrby</span><span class="token3">(</span><span class="token2">'counter'</span><span class="token3">,</span> <span class="token6">10</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//增量操作</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">incrby</span><span class="token3">(</span><span class="token2">'counter'</span><span class="token3">,</span> <span class="token6">30</span><span class="token3">)</span><span class="token3">;</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">exists</span><span class="token3">(</span><span class="token2">'counter'</span><span class="token3">)</span><span class="token3">;</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">get</span><span class="token3">(</span><span class="token2">'counter'</span><span class="token3">)</span><span class="token3">;</span> $pipe<span class="token1">-</span><span class="token1">></span><span class="token4">mget</span><span class="token3">(</span><span class="token2">'does_not_exist'</span><span class="token3">,</span> <span class="token2">'counter'</span><span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span><span class="token3">)</span><span class="token3">;</span> <span class="token4">print_r</span><span class="token3">(</span>$replies<span class="token3">)</span><span class="token3">;</span> <span class="token">//CAS,事务性操作</span> <span class="token5">function</span> <span class="token4">zpop</span><span class="token3">(</span>$client<span class="token3">,</span> $zsetKey<span class="token3">)</span> <span class="token3">{</span> $element <span class="token1">=</span> <span class="token5">null</span><span class="token3">;</span> $options <span class="token1">=</span> <span class="token4">array</span><span class="token3">(</span> <span class="token2">'cas'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">true</span><span class="token3">,</span> <span class="token">// Initialize with support for CAS operations</span> <span class="token2">'watch'</span> <span class="token1">=</span><span class="token1">></span> $zsetKey<span class="token3">,</span> <span class="token">// Key that needs to be WATCHed to detect changes</span> <span class="token2">'retry'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">3</span><span class="token3">,</span> <span class="token">// Number of retries on aborted transactions, after</span> <span class="token">// which the client bails out with an exception.</span> <span class="token3">)</span><span class="token3">;</span> $txReply <span class="token1">=</span> $client<span class="token1">-</span><span class="token1">></span><span class="token4">multiExec</span><span class="token3">(</span>$options<span class="token3">,</span> <span class="token5">function</span><span class="token3">(</span>$tx<span class="token3">)</span> use <span class="token3">(</span>$zsetKey<span class="token3">,</span> <span class="token1">&</span>$element<span class="token3">)</span> <span class="token3">{</span> @<span class="token4">list</span><span class="token3">(</span>$element<span class="token3">)</span> <span class="token1">=</span> $tx<span class="token1">-</span><span class="token1">></span><span class="token4">zrange</span><span class="token3">(</span>$zsetKey<span class="token3">,</span> <span class="token6">0</span><span class="token3">,</span> <span class="token6">0</span><span class="token3">)</span><span class="token3">;</span> <span class="token5">if</span> <span class="token3">(</span><span class="token4">isset</span><span class="token3">(</span>$element<span class="token3">)</span><span class="token3">)</span> <span class="token3">{</span> $tx<span class="token1">-</span><span class="token1">></span><span class="token4">multi</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token">// With CAS, MULTI *must* be explicitly invoked.</span> $tx<span class="token1">-</span><span class="token1">></span><span class="token4">zrem</span><span class="token3">(</span>$zsetKey<span class="token3">,</span> $element<span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span> <span class="token3">}</span><span class="token3">)</span><span class="token3">;</span> <span class="token5">return</span> $element<span class="token3">;</span> <span class="token3">}</span> $zpopped <span class="token1">=</span> <span class="token4">zpop</span><span class="token3">(</span>$redis<span class="token3">,</span> <span class="token2">'zset'</span><span class="token3">)</span><span class="token3">;</span> echo <span class="token4">isset</span><span class="token3">(</span>$zpopped<span class="token3">)</span> <span class="token1">?</span> “ZPOPed $zpopped” <span class="token3">:</span> “Nothing to ZPOP<span class="token1">!</span>”<span class="token3">,</span> “\n”<span class="token3">;</span> <span class="token">//对存取的key加前缀,如: 'nrk:'</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">getProfile</span><span class="token3">(</span><span class="token3">)</span><span class="token1">-</span><span class="token1">></span><span class="token4">setPreprocessor</span><span class="token3">(</span><span class="token5">new</span> <span class="token4">KeyPrefixPreprocessor</span><span class="token3">(</span><span class="token2">'nrk:'</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> <span class="token">//分布式存储的一些方法</span> $multiple_servers <span class="token1">=</span> <span class="token4">array</span><span class="token3">(</span> <span class="token4">array</span><span class="token3">(</span> <span class="token2">'host'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'127.0.0.1'</span><span class="token3">,</span> <span class="token2">'port'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">6379</span><span class="token3">,</span> <span class="token2">'database'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">15</span><span class="token3">,</span> <span class="token2">'alias'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'first'</span><span class="token3">,</span> <span class="token3">)</span><span class="token3">,</span> <span class="token4">array</span><span class="token3">(</span> <span class="token2">'host'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'127.0.0.1'</span><span class="token3">,</span> <span class="token2">'port'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">6380</span><span class="token3">,</span> <span class="token2">'database'</span> <span class="token1">=</span><span class="token1">></span> <span class="token6">15</span><span class="token3">,</span> <span class="token2">'alias'</span> <span class="token1">=</span><span class="token1">></span> <span class="token2">'second'</span><span class="token3">,</span> <span class="token3">)</span><span class="token3">,</span> <span class="token3">)</span><span class="token3">;</span> use Predis\Distribution\IDistributionStrategy<span class="token3">;</span> class <span class="token4">NaiveDistributionStrategy</span> implements <span class="token4">IDistributionStrategy</span> <span class="token3">{</span> private $_nodes<span class="token3">,</span> $_nodesCount<span class="token3">;</span> public <span class="token5">function</span> <span class="token4">__constructor</span><span class="token3">(</span><span class="token3">)</span> <span class="token3">{</span> $this<span class="token1">-</span><span class="token1">></span>_nodes <span class="token1">=</span> <span class="token4">array</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> $this<span class="token1">-</span><span class="token1">></span>_nodesCount <span class="token1">=</span> <span class="token6">0</span><span class="token3">;</span> <span class="token3">}</span> public <span class="token5">function</span> <span class="token4">add</span><span class="token3">(</span>$node<span class="token3">,</span> $weight <span class="token1">=</span> <span class="token5">null</span><span class="token3">)</span> <span class="token3">{</span> $this<span class="token1">-</span><span class="token1">></span>_nodes<span class="token3">[</span><span class="token3">]</span> <span class="token1">=</span> $node<span class="token3">;</span> $this<span class="token1">-</span><span class="token1">></span>_nodesCount<span class="token1">++</span><span class="token3">;</span> <span class="token3">}</span> public <span class="token5">function</span> <span class="token4">remove</span><span class="token3">(</span>$node<span class="token3">)</span> <span class="token3">{</span> $this<span class="token1">-</span><span class="token1">></span>_nodes <span class="token1">=</span> <span class="token4">array_filter</span><span class="token3">(</span>$this<span class="token1">-</span><span class="token1">></span>_nodes<span class="token3">,</span> <span class="token5">function</span><span class="token3">(</span>$n<span class="token3">)</span> <span class="token4">use</span><span class="token3">(</span>$node<span class="token3">)</span> <span class="token3">{</span> <span class="token5">return</span> $n <span class="token1">!==</span> $node<span class="token3">;</span> <span class="token3">}</span><span class="token3">)</span><span class="token3">;</span> $this<span class="token1">-</span><span class="token1">></span>_nodesCount <span class="token1">=</span> <span class="token4">count</span><span class="token3">(</span>$this<span class="token1">-</span><span class="token1">></span>_nodes<span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span> public <span class="token5">function</span> <span class="token4">get</span><span class="token3">(</span>$key<span class="token3">)</span> <span class="token3">{</span> $count <span class="token1">=</span> $this<span class="token1">-</span><span class="token1">></span>_nodesCount<span class="token3">;</span> <span class="token5">if</span> <span class="token3">(</span>$count <span class="token1">===</span> <span class="token6">0</span><span class="token3">)</span> <span class="token3">{</span> <span class="token5">throw</span> <span class="token5">new</span> <span class="token4">RuntimeException</span><span class="token3">(</span><span class="token2">'No connections'</span><span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span> <span class="token5">return</span> $this<span class="token1">-</span><span class="token1">></span>_nodes<span class="token3">[</span>$count <span class="token1">></span> <span class="token6">1</span> <span class="token1">?</span> <span class="token4">abs</span><span class="token3">(</span><span class="token4">crc32</span><span class="token3">(</span>$key<span class="token3">)</span> <span class="token1">%</span> $count<span class="token3">)</span> <span class="token3">:</span> <span class="token6">0</span><span class="token3">]</span><span class="token3">;</span> <span class="token3">}</span> public <span class="token5">function</span> <span class="token4">generateKey</span><span class="token3">(</span>$value<span class="token3">)</span> <span class="token3">{</span> <span class="token5">return</span> <span class="token4">crc32</span><span class="token3">(</span>$value<span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span> <span class="token3">}</span> <span class="token">//配置键分布策略</span> $options <span class="token1">=</span> <span class="token4">array</span><span class="token3">(</span> <span class="token2">'key_distribution'</span> <span class="token1">=</span><span class="token1">></span> <span class="token5">new</span> <span class="token4">NaiveDistributionStrategy</span><span class="token3">(</span><span class="token3">)</span><span class="token3">,</span> <span class="token3">)</span><span class="token3">;</span> $redis <span class="token1">=</span> <span class="token5">new</span> <span class="token4">Predis<span class="token3">\</span>Client</span><span class="token3">(</span>$multiple_servers<span class="token3">,</span> $options<span class="token3">)</span><span class="token3">;</span> <span class="token5">for</span> <span class="token3">(</span>$i <span class="token1">=</span> <span class="token6">0</span><span class="token3">;</span> $i <span class="token4">set</span><span class="token3">(</span>“key<span class="token3">:</span>$i”<span class="token3">,</span> <span class="token4">str_pad</span><span class="token3">(</span>$i<span class="token3">,</span> <span class="token6">4</span><span class="token3">,</span> <span class="token2">'0'</span><span class="token3">,</span> <span class="token6">0</span><span class="token3">)</span><span class="token3">)</span><span class="token3">;</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">get</span><span class="token3">(</span>“key<span class="token3">:</span>$i”<span class="token3">)</span><span class="token3">;</span> <span class="token3">}</span> $server1 <span class="token1">=</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">getClientFor</span><span class="token3">(</span><span class="token2">'first'</span><span class="token3">)</span><span class="token1">-</span><span class="token1">></span><span class="token4">info</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> $server2 <span class="token1">=</span> $redis<span class="token1">-</span><span class="token1">></span><span class="token4">getClientFor</span><span class="token3">(</span><span class="token2">'second'</span><span class="token3">)</span><span class="token1">-</span><span class="token1">></span><span class="token4">info</span><span class="token3">(</span><span class="token3">)</span><span class="token3">;</span> <span class="token4">printf</span><span class="token3">(</span>“Server <span class="token2">'%s'</span> has <span class="token1">%</span>d keys <span class="token5">while</span> server <span class="token2">'%s'</span> has <span class="token1">%</span>d keys<span class="token3">.</span>\n”<span class="token3">,</span> <span class="token2">'first'</span><span class="token3">,</span> $server1<span class="token3">[</span><span class="token2">'db15'</span><span class="token3">]</span><span class="token3">[</span><span class="token2">'keys'</span><span class="token3">]</span><span class="token3">,</span> <span class="token2">'second'</span><span class="token3">,</span> $server2<span class="token3">[</span><span class="token2">'db15'</span><span class="token3">]</span><span class="token3">[</span><span class="token2">'keys'</span><span class="token3">]</span> ``` ```