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PHP - Manual: ReflectionAttribute::newInstance - 互联网笔记

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PHP - Manual: ReflectionAttribute::newInstance

2025-04-28

ReflectionAttribute::newInstance

(PHP 8)

ReflectionAttribute::newInstance实例化由 ReflectionAttribute 类和参数表示的属性类

说明

public ReflectionAttribute::newInstance(): object

实例化由 ReflectionAttribute 类和参数表示的属性类。

参数

此函数没有参数。

返回值

属性的新实例。

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baptiste at pillot dot fr
2 years ago
Calling ReflectionAttribute::newInstance() using an attribute name that does not have a corresponding class will result in an error.

Example :

<?php
#[FakeAttribute]
class
Test {}

try {
(new
ReflectionClass(Test::class))->getAttributes()[0]->newInstance();
}
catch (
Error $error) {
echo
'Throwed error ' . get_class($error) . ' with message : ' . $error->getMessage();
}
?>

This will output :

Throwed error Error with message : Attribute class "FakeAttribute" not found

官方地址:https://www.php.net/manual/en/reflectionattribute.newinstance.php

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