Set property accessibility

# ReflectionProperty::setAccessible

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

ReflectionProperty::setAccessible — Set property accessibility

警告

此函数自 PHP 8.5.0 起弃用。强烈建议不要应用此函数。

### 说明

#[\Deprecated]
public function ReflectionProperty::setAccessible(bool `$accessible`): void

Enables access to a protected or private property via the ReflectionProperty::getValue() and ReflectionProperty::setValue() methods.

> 注意: As of PHP 8.1.0, calling this method has no effect; all properties are accessible by default.

### 参数

`accessible`

  `true` to allow accessibility, or `false`.

### 返回值

没有返回值。

### 更新日志

版本 | 说明
--- | ---
8.5.0 | This method has been deprecated, as it no longer has an effect.
8.1.0 | Calling this method has no effect; all properties are accessible by default.

### 示例

示例 #1 Simple Class definition

    <?php
    class MyClass
    {
        private $foo = 'bar';
    }

    $property = new ReflectionProperty("MyClass", "foo");
    $property->setAccessible(true);

    $obj = new MyClass();
    echo $property->getValue($obj);
    echo $obj->foo;
    ?>

以上示例的输出类似于：

    bar
    Fatal error: Uncaught Error: Cannot access private property MyClass::$foo in /in/WJqTv:12

### 参见

- ReflectionProperty::isPrivate() - Checks if property is private
- ReflectionProperty::isProtected() - Checks if property is protected

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