PHP Reflection是用于获取类、扩展、方法、函数、对象、参数、属性的详细信息。 ReflectionClass类获取类相关信息,如获取属性、方法、文档注释等。
/**
- For the sake of demonstration,we"re setting this private
*/
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;
}
}
//导出类
ReflectionClass::export('Person');
$r = new ReflectionClass('Person');
//获取所有属性
print_r($r->getProperties());
/**
- 获取指定属性
- ReflectionProperty::IS_STATIC
- ReflectionProperty::IS_PUBLIC
- ReflectionProperty::IS_PROTECTED
- ReflectionProperty::IS_PRIVATE
*/
print_r($r->getProperties(ReflectionProperty::IS_PRIVATE));
//获取注释
print_r($r->getProperty('id')->getDocComment());
ReflectionExtension 类用于获取扩展相关信息
$dom = new ReflectionExtension('MysqL');
print_r($dom->getConstants());//扩展常量
print_r($dom->getDependencies());//该扩展依赖
print_r($dom->getFunctions());//扩展方法
print_r($dom->getINIEntries());//扩展ini信息
print_r($dom->getName());//扩展名称
print_r($dom->getVersion());//扩展版本
print_r($dom->info());//扩展信息
print_r($dom->isPersistent());//是否是持久扩展
print_r($dom->isTemporary()); //是否是临时扩展
ReflectionFunction类 用户获取函数相关信息
/**
- get name of person
*/
public function getName()
{
return $this->name;
}
public function setName($v)
{
$this->name = $v;
}
}
$rm = new ReflectionMethod('Person','getName');
print_r($rm->isPublic());
print_r($rm->getDocComment());
ReflectionObject 类 用于获取对象相关信息
public function __construct($name)
{
$this->name = $name;
}
public function getName()
{
return $this->name;
}
public function setName($v)
{
$this->name = $v;
}
}
$a = new Person('a');
$ro = new ReflectionObject($a);
print_r($ro->getMethods());
ReflectionParameter 获取函数或方法参数的相关信息。
public function __construct($name)
{
$this->name = $name;
}
public function getName()
{
return $this->name;
}
public function setName($v)
{
$this->name = $v;
}
}
$p = new ReflectionParameter(array('Person','setName'),0);
print_r($p->getPosition()); //0
print_r($p->getName()); //v
ReflectionProperty 获取类的属性的相关信息。
public $name;
public function __construct($name)
{
$this->name = $name;
}
public function getName()
{
return $this->name;
}
public function setName($v)
{
$this->name = $v;
}
}
$p = new ReflectionProperty('Person','name');
print_r($p->getDocComment());