# arrlist\_change\_key() ## arrlist\_change\_key() ``` <pre class="calibre11">``` arrlist_change_key(&$arrlist, $key, $pre = '') ``` ``` #### 【功能】 改变二维数组的 key。 #### 【参数】 ``` <pre class="calibre11">``` $arrlist: 二维数组 $key: 键名 $pre: 改变后的前缀，默认为空 ``` ``` #### 【用例】 ``` <pre class="calibre11">``` <?php $conf = include './conf.php'; include './xiunophp/xiunophp.php'; $arrlist = array( 0 => array('uid'=>1, 'username'=>'username1'), 1 => array('uid'=>2, 'username'=>'username2'), 2 => array('uid'=>3, 'username'=>'username3'), ); arrlist_change_key($arrlist, 'uid'); print_r($arrlist); /* 结果： array ( 1 => array('uid'=>1, 'username'=>'username1'), 2 => array('uid'=>2, 'username'=>'username2'), 3 => array('uid'=>3, 'username'=>'username3'), ); */ ?> ``` ```