thinkphp控制器调度使用示例_PHP
ThinkPHP
1.如何通过地址栏参数来得到模块名称和控制器名称(即使在有路由和开了重写模块的情况下)
2.tp是如何实现前置,后置方法功能模块,和如何执行带参数的方法?
php系统自带的 ReflectionClass,ReflectionMethod 类,可以反射用户自定义类的中属性,方法的权限和参数等信息,通过这些信息可以准确的控制方法的执行
ReflectionClass主要用的方法:
hasMethod(string) 是否存在某个方法
getMethod(string) 获取方法
ReflectionMethod 主要方法:
getNumberOfParameters() 获取参数个数
getParamters() 获取参数信息
3.代码演示
复制代码 代码如下:
class IndexAction{
public function index(){
echo 'index'."\r\n";
}
public function test($year=2012,$month=2,$day=21){
echo $year.'--------'.$month.'-----------'.$day."\r\n";
}
public function _before_index(){
echo __FUNCTION__."\r\n";
}
public function _after_index(){
echo __FUNCTION__."\r\n";
}
}
//执行index方法
$method = new ReflectionMethod('IndexAction','index');
//进行权限判断
if($method->isPublic()){
$class = new ReflectionClass('IndexAction');
//执行前置方法
if($class->hasMethod('_before_index')){
$beforeMethod = $class->getMethod('_before_index');
if($beforeMethod->isPublic()){
$beforeMethod->invoke(new IndexAction);
}
}
$method->invoke(new IndexAction);
//执行后置方法
if($class->hasMethod('_after_index')){
$beforeMethod = $class->getMethod('_after_index');
if($beforeMethod->isPublic()){
$beforeMethod->invoke(new IndexAction);
}
}
}
//执行带参数的方法
$method = new ReflectionMethod('IndexAction','test');
$params = $method->getParameters();
foreach($params as $param ){
$paramName = $param->getName();
if(isset($_REQUEST[$paramName]))
$args[] = $_REQUEST[$paramName];
elseif($param->isDefaultValueAvailable())
$args[] = $param->getDefaultValue();
}
if(count($args)==$method->getNumberOfParameters())
$method->invokeArgs(new IndexAction,$args);
else
echo 'parameters is not match!';

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