php反射API 获取属性/注释/方法 执行方法 实例

<?php

class Person
{
	/**
     * 这里是对$_allowDynamicAttributes的注释信息
	 */
	private $_allowDynamicAttributes = false;

    /** type=primary_autoincrement */
	protected $id = 0;
    
    /** type=varchar length=255 null */  
	protected $name;
    
    /** type=text null */ 
	protected $biography;

	public function getId()
	{
		 return $this->id;
	}

	public function setId($v)
	{
          $this->id = $v;
	}

	public function getName()
	{
		return $this->name;
	} 

	public function setName($v)
	{
		$this->name = $v;
	}

	public function getBiography()
	{
		return $this->biography;
	}

	public function setBiography($v)
	{
		$this->biography = $v;
	}
}

$class = new ReflectionClass('Person'); //建立Person这个类的反射类
$instance = $class->newInstanceArgs();  //相当于实例化Person类
//var_dump($instance);
//1 获取属性(Properties):
echo "<h1>获取属性</h1>";
$properties = $class->getProperties();
foreach ($properties as &$property) 
{
	echo $property->getName()."<BR>";
}
//默认情况下,ReflectionClass会取所有的属性,private 和protected的也可以
//如果只想获取到private属性,就要额外传个参数
//可用参数列表:
// $private_properties = $class->getProperties(ReflectionProperty::IS_PRIVATE);
// 可用参数列表
    //ReflectionProperty::IS_STATIC
    //ReflectionProperty::IS_PUBLIC
    //ReflectionProperty::IS_PROVATE
    //ReflectionProperty::IS_PROECTED
//如果要同时获取public 和private 属性,就这样写:ReflectionProperty::IS_PUBLIC | ReflectionProperty::IS_PROTECTED。


echo "<h1>获取注释</h1>";
//获取注释
foreach($properties as &$property)
{
	if($property->isProtected())  ////测试该方法是否为protected
	{
		$docblock = $property->getDocComment();
		preg_match('/ type=([a-z_]*) /', $property->getDocComment(), $matches);  
		echo $matches[1]."<BR><BR>";

	}
}

//获取类的方法
//获取方法(methods):通过getMethods()来获取到类的所有methods

//执行类的方法
$instance->setBiography(22);
echo $instance->getBiography(); //执行Person里面的方法getBiography

//或者
$ec = $class->getMethod('setName');
$ec->invoke($instance,'xlc');

$ec2 = $class->getMethod('getName');
echo $ec2->invoke($instance);

?>

  

原文地址:https://www.cnblogs.com/xiangxiaodong/p/3168606.html