php获取、检查类名、函数名、方法名的函数方法
php获取、检查类名、函数名、方法名的函数方法
这篇文章主要介绍了php获取、检查类名、函数名、方法名的函数方法,本文汇总介绍7个函数的作用和使用介绍,需要的朋友可以参考下
1.function_exists() - Return TRUE if the given function has been defined
2.is_callable() - 检测参数是否为合法的可调用结构
3.class_exists() - 检查类是否已定义
4.method_exists() - 检查类的方法是否存在
__FUNCTION__ 函数名称(PHP 4.3.0 新加)。自 PHP 5 起本常量返回该函数被定义时的名字(区分大小写)。在 PHP 4 中该值总是小写字母的。
__CLASS__ 类的名称(PHP 4.3.0 新加)。自 PHP 5 起本常量返回该类被定义时的名字(区分大小写)。在 PHP 4 中该值总是小写字母的。
__METHOD__ 类的方法名(PHP 5.0.0 新加)。返回该方法被定义时的名字(区分大小写)。
注:这些常量前后均是两个下划线。
get_class(class name);//取得当前语句所在类的类名
get_class_methods(class name);//取得class name 类的所有的方法名,并且组成一个数组
get_class_vars(class name);//取得class name 类的所有的变亮名,并组成一个数组

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