Checks if property is a dynamic property

# ReflectionProperty::isDynamic

(PHP 8 >= 8.4.0)

ReflectionProperty::isDynamic — Checks if property is a dynamic property

### 说明

public function ReflectionProperty::isDynamic(): bool

Checks whether the property was declared at run-time, or whether the property was declared at compile-time.

### 参数

此函数没有参数。

### 返回值

`true` if the property was declared at run-time, or `false` if it was created at compile-time.

### 示例

示例 #1 ReflectionProperty::isDynamic() example

    <?php

    #[\AllowDynamicProperties]
    class Foo {
        public $bar;
    }

    $o = new Foo();
    $o->bar = 42;
    $o->baz = 42;

    $ro = new ReflectionObject($o);
    var_dump($ro->getProperty('bar')->isDynamic());
    var_dump($ro->getProperty('baz')->isDynamic());
    ?>

以上示例会输出：

    bool(false)
    bool(true)

### 参见

- ReflectionProperty::getValue() - Gets value

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