# ReflectionClassConstant类报告有关类常量的信息。 ``` <pre class="calibre29">``` ReflectionClassConstant implements <span class="token4">Reflector</span> <span class="token3">{</span> <span class="token">/* 属性 */</span> public $name <span class="token3">;</span> <span class="token">//类常量的名称。只读，在尝试编写时抛出ReflectionException</span> public $class<span class="token3">;</span> <span class="token">//定义类常量的类的名称。只读，在尝试编写时抛出ReflectionException</span> <span class="token">/* 方法 */</span> public __construct <span class="token3">(</span> mixed $class <span class="token3">,</span> string $name <span class="token3">)</span> <span class="token">//构造一个ReflectionClassConstant</span> public static export <span class="token3">(</span> mixed $class <span class="token3">,</span> string $name <span class="token3">[</span><span class="token3">,</span> bool $<span class="token5">return</span> <span class="token3">]</span> <span class="token3">)</span> <span class="token3">:</span> string <span class="token">//导出</span> public getDeclaringClass <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> ReflectionClass <span class="token">//获取声明类</span> public getDocComment <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> string <span class="token">//获取文档注释</span> public getModifiers <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> int <span class="token">//获取类常量修饰符</span> public getName <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> string <span class="token">//获取常量的名称</span> public getValue <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> mixed <span class="token">//获取值</span> public isPrivate <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> bool <span class="token">//检查类常量是否为Private</span> public isProtected <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> bool <span class="token">//检查类常量是否为Protected</span> public isPublic <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> bool <span class="token">//检查类常量是否为public</span> public __toString <span class="token3">(</span> void <span class="token3">)</span> <span class="token3">:</span> string <span class="token">//返回ReflectionClassConstant对象的字符串表示形式</span> <span class="token3">}</span> ``` ```