PHP function method to obtain and check class name, function name, method name_PHP tutorial

PHP’s function methods to obtain and check class names, function names, and method names

This article mainly introduces the functions of PHP to obtain and check class names, function names, and method names. Method, this article summarizes the functions and usage of 7 functions. Friends in need can refer to it

　1.function_exists() - Return TRUE if the given function has been defined

　2.is_callable() - Check whether the parameter is a legal callable structure

　3.class_exists() - Check whether the class has been defined

　4.method_exists() - Check whether the class method exists

　__FUNCTION__ function name (newly added in PHP 4.3.0). Since PHP 5 this constant returns the name of the function when it was defined (case sensitive). In PHP 4 this value is always lowercase.

__CLASS__ The name of the class (newly added in PHP 4.3.0). Since PHP 5 this constant returns the name of the class when it was defined (case sensitive). In PHP 4 this value is always lowercase.

　__METHOD__ The method name of the class (newly added in PHP 5.0.0). Returns the name of the method as it was defined (case-sensitive).

Note: These constants are preceded and followed by two underscores.

　get_class(class name);//Get the class name of the class where the current statement is located

　get_class_methods(class name);//Get all the method names of class name and form an array

　get_class_vars(class name);//Get all the highlighted names of class name and form an array

http://www.bkjia.com/PHPjc/1021560.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1021560.htmlTechArticlephp function method to obtain, check class name, function name, method name. This article mainly introduces php acquisition, Check the function methods of class names, function names, and method names. This article summarizes 7 functions...