<?php class UserController { public function add() { } public function index(Request $request, DB $db) { $request->all(); $request->only(); $db -> get(); } } class Request { public function all() { echo '获取所有的参数....<hr>'; } public function only() { echo '获取部分参数.....<hr>'; } } class DB { public function get() { echo '获取所有的结果集...<hr>'; } } // $request = new Request; //利用php的反射机制 // $request = new ReflectionClass('Request'); // $obj = $request->newInstance(); //声明方向 $className = 'UserController'; $methodName = 'index'; //创建反射对象 $class = new ReflectionClass($className); $method = new ReflectionMethod($className, $methodName); //获取当前方法的参数列表 $params = $method->getParameters(); // $cnames = []; //执行方法时的参数列表 $args = []; foreach ($params as $key => $value) { // $cnames[] = $value->getClass()->getName(); $args[] = (new ReflectionClass($value->getClass()->getName())) -> newInstance(); } //执行指定方法中的代码 index $method->invokeArgs($class->newInstance(), $args); ?>