runkit_function_redefine

(PECL runkit >= 0.7.0)

runkit_function_redefine — Replace a function definition with a new implementation

说明

runkit_function_redefine ( string $funcname , string $arglist , string $code [, bool $return_by_reference = NULL [, string $doc_comment = NULL ]] ) : bool
runkit_function_redefine ( string $funcname , Closure $closure [, string $doc_comment = NULL ] ) : bool

Note: 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.

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

更新日志

版本 说明
runkit 1.0.4 An alternative syntax expecting a closure has been added.
runkit 1.0.4 The optional parameters return_by_reference and doc_comment have been added.

范例

Example #1 A runkit_function_redefine() example

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

以上例程会输出：

Original Testme Implementation
New Testme Implementation

参见

相关文章
php ldap 函数 replace attribute values with new onesphp ldap 函数 replace attribute values with new onesphp newt 函数 saves the current help line on a stack and displays the new linephp output control 函数 在ob start中使用的用来压缩输出缓冲区中内容的回调函数。ob start callback function to gzip output bufferphp pdf 函数 start new page deprecated php pdf 函数 terminate type 3 font definitionphp pcre 函数 perform a regular expression search and replace using callbacksphp ps 函数 creates a new postscript document objectphp apd 函数 renames orig name to new name in the global function tablephp runkit 函数 remove/delete an already defined constantphp runkit 函数 add a new function similar to create functionphp runkit 函数 copy a function to a new function namephp runkit 函数 replace a function definition with a new implementationphp runkit 函数 remove a function definitionphp runkit 函数 change a function s namephp runkit 函数 process a php file importing function and class definitions overwriting where appropriatephp runkit 函数 dynamically adds a new method to a given classphp runkit 函数 specify a function to capture and/or process output from a runkit sandboxphp runkit 函数 return numerically indexed array of registered superglobalsphp statistic 函数 probability mass function of the poisson distribution
关注编程学问公众号