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PHP - Manual: ReflectionFunctionAbstract::isClosure - 互联网笔记

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PHP - Manual: ReflectionFunctionAbstract::isClosure

2025-04-28

ReflectionFunctionAbstract::isClosure

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

ReflectionFunctionAbstract::isClosure检查是否是匿名函数

说明

public ReflectionFunctionAbstract::isClosure(): bool

检查反射函数是否是 Closure

参数

此函数没有参数。

返回值

如果是 Closure 返回 true,否则返回 false

示例

示例 #1 ReflectionFunctionAbstract::isClosure() 示例

<?php
// 非匿名函数
$function1 = 'str_replace';
$reflection1 = new ReflectionFunction($function1);
var_dump($reflection1->isClosure());

// 匿名函数
$function2 = function () {};
$reflection2 = new ReflectionFunction($function2);
var_dump($reflection2->isClosure());
?>

以上示例会输出:

bool(false)
bool(true)

参见

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官方地址:https://www.php.net/manual/en/reflectionfunctionabstract.isclosure.php

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