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runkit7_function_redefine

(PECL runkit7 >= Unknown)

runkit7_function_redefine Replace a function definition with a new implementation

说明

runkit7_function_redefine(
    string $funcname,
    string $arglist,
    string $code,
    bool $return_by_reference = null,
    string $doc_comment = null,
    string $return_type = ?,
    bool $is_strict = ?
): bool
runkit7_function_redefine(
    string $funcname,
    Closure $closure,
    string $doc_comment = null,
    string $return_type = ?,
    bool $is_strict = ?
): bool

注意: 默认情况下,仅在用户空间可删除,重命名,或者修改函数。为了覆盖内部函数,必须启用 php.ini 中的 runkit.internal_override 设置。

参数

funcname

Name of function to redefine

arglist

New list of arguments to be accepted by function

code

New code implementation

closure

A closure that defines the function.

return_by_reference

Whether the function should return by reference.

doc_comment

The doc comment of the function.

return_type

The return type of the function.

is_strict

Whether the function behaves as if it was declared in a file with strict_types=1

返回值

成功时返回 true, 或者在失败时返回 false

范例

示例 #1 A runkit7_function_redefine() example

<?php
function testme() {
  echo 
"Original Testme Implementation\n";
}
testme();
runkit7_function_redefine('testme','','echo "New Testme Implementation\n";');
testme();
?>

以上例程会输出:

Original Testme Implementation
New Testme Implementation

参见

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