反射API
Posted Fairy Tail
tags:
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<?php
function classData(ReflectionClass $class)
{
echo ‘<hr>‘;
$details = ‘当前文件：‘;
$details .= $class->getFilename().PHP_EOL;
$details .= ‘类名：‘.$class->getName().PHP_EOL;
$details .= ‘起始行：‘.$class->getStartLine().PHP_EOL;
$details .= ‘结束行：‘.$class->getEndLine().PHP_EOL;
if ($class->isUserDefined()) {
$details .= ‘由用户定义‘.PHP_EOL;
}
if ($class->isInternal()) {
$details .= ‘由扩展或核心在内部定义‘.PHP_EOL;
}
if ($class->isInterface()) {
$details .= ‘是一个接口‘.PHP_EOL;
}
if ($class->isAbstract()) {
$details .= ‘是final类‘.PHP_EOL;
}
if ($class->isFinal()) {
$details .= ‘是抽象类‘.PHP_EOL;
}
if ($class->isInstantiable()) {
$details .= ‘可实例化‘.PHP_EOL;
} else {
$details .= ‘不能实例化‘.PHP_EOL;
}
return $details;
}
function methodData(ReflectionMethod $method)
{
echo ‘<hr>‘;
$details = ‘当前文件：‘;
$details .= $method->getFilename().PHP_EOL;
$details .= ‘方法名：‘.$method->getName().PHP_EOL;
$details .= ‘起始行：‘.$method->getStartLine().PHP_EOL;
$details .= ‘结束行：‘.$method->getEndLine().PHP_EOL;
if ($method->isUserDefined()) {
$details .= ‘用户定义‘.PHP_EOL;
}
if ($method->isInternal()) {
$details .= ‘是内置函数‘.PHP_EOL;
}
if ($method->isPublic()) {
$details .= ‘是公开方法‘.PHP_EOL;
}
if ($method->isProtected()) {
$details .= ‘是保护方法‘.PHP_EOL;
}
if ($method->isPrivate()) {
$details .= ‘是私有方法‘.PHP_EOL;
}
if ($method->isStatic()) {
$details .= ‘是静态方法‘.PHP_EOL;
}
if ($method->isFinal()) {
$details .= ‘是定义final‘.PHP_EOL;
}
if ($method->isConstructor()) {
$details .= ‘是构造方法‘.PHP_EOL;
}
if ($method->returnsReference()) {
// 只有在方法前加 & 才返回true
$details .= ‘返回参考信息‘.PHP_EOL;
}
// var_dump($method->getDocComment());
return $details;
}
function argData(ReflectionParameter $arg)
{
echo ‘<hr>‘;
$details = ‘‘;
$declaringclass = $arg->getDeclaringClass();
$name = $arg->getName();
$class = $arg->getClass();
$position = $arg->getPosition();
$details .= $name.‘是‘.$position.‘个参数‘.PHP_EOL;
if (!empty($class)) {
$classname = $class->getName();
$details .= $name.‘必须是‘.$classname.‘的对象‘.PHP_EOL;
}
if ($arg->isPassedByReference()) {
$details .= $name.‘是引用传值‘.PHP_EOL;
}
if ($arg->isDefaultValueAvailable()) {
$details .= $name.‘有默认值‘.PHP_EOL;
}
return $details;
}
class A
{
}
class Product
{
public $name;
protected $price;
private $obj;
public function __construct(&$name, $price=5.99, A $a=null)
{
$this->name = $name;
$this->price = $price;
}
/**
* [say description]
* @return [type] [description]
*/
public function say()
{
echo ‘name:‘.$this->name.‘ price:‘.$this.price;
}
}
echo ‘<pre>‘;
$obj = new ReflectionClass(‘Product‘);
echo classData($obj);
foreach ($obj->getMethods() as $key => $value) {
echo methodData($value);
}
foreach ($obj->getMethod(‘__construct‘)->getParameters() as $key => $value) {
echo argData($value);
}
// var_dump(Reflection::export($obj));
// var_dump(ReflectionClass::export(‘Product‘));
// var_dump(ReflectionMethod::export(‘Product‘, ‘say‘));
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