PHP 7.2.9 Released

classkit_method_add

(PECL classkit >= 0.1)

classkit_method_addDynamically adds a new method to a given class

说明

bool classkit_method_add ( string $classname , string $methodname , string $args , string $code [, int $flags = CLASSKIT_ACC_PUBLIC ] )
Warning

此函数是实验性的。此函数的表象,包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。

参数

classname

The class to which this method will be added

methodname

The name of the method to add

args

Comma-delimited list of arguments for the newly-created method

code

The code to be evaluated when methodname is called

flags

The type of method to create, can be CLASSKIT_ACC_PUBLIC, CLASSKIT_ACC_PROTECTED or CLASSKIT_ACC_PRIVATE

Note:

This parameter is only used as of PHP 5, because, prior to this, all methods were public.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

范例

Example #1 classkit_method_add() example

<?php
class Example {
    function 
foo() {
        echo 
"foo!\n";
    }
}

// create an Example object
$e = new Example();

// Add a new public method
classkit_method_add(
    
'Example',
    
'add',
    
'$num1, $num2',
    
'return $num1 + $num2;',
    
CLASSKIT_ACC_PUBLIC
);

// add 12 + 4
echo $e->add(124);
?>

以上例程会输出:

16

参见

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User Contributed Notes 1 note

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1
Lester
10 years ago
If you creates methods by using classkit_method_add(), they are not visible in get_class_methods().

class A
{   
       public function foo()
       {
            return "foo!\n";
       }
}

classkit_method_redefine('A','bar','','return "bar !\n";',CLASSKIT_ACC_PUBLIC);

print_r(get_class_methods('A'));
// writes only "foo"
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