thinkphp controller scheduling usage example

1. How to get the module name and controller name from the address bar parameter (even if there is routing and rewrite module open)

2. How does tp implement pre - and post-method function modules, and how to execute methods with parameters?

php system comes with ReflectionClass,ReflectionMethod class, can reflect user-defined class properties, method permissions and parameters and other information, through these information can accurately control the execution of the method

The main methods used by ReflectionClass:
hasMethod(string) whether a method exists
getMethod(string) method

ReflectionMethod main methods:
getNumberOfParameters() Gets the number of arguments
getParamters() gets parameter information

3. Code Demo

<?php 
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";
 }
}
// perform index methods 
$method = new ReflectionMethod('IndexAction','index');
// Permission determination 
if($method->isPublic()){
 $class = new ReflectionClass('IndexAction');
 // Execute the pre-method 
 if($class->hasMethod('_before_index')){
  $beforeMethod = $class->getMethod('_before_index');
  if($beforeMethod->isPublic()){
   $beforeMethod->invoke(new IndexAction);
  }
 }
 $method->invoke(new IndexAction);
 // Execute the post method 
 if($class->hasMethod('_after_index')){
  $beforeMethod = $class->getMethod('_after_index');
  if($beforeMethod->isPublic()){
   $beforeMethod->invoke(new IndexAction);
  }
 }
}

// Executes methods with arguments 
$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!';