反射API(一)

<?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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