PHP processing restful requests for routing class sharing

Source: Internet
Author: User
Tags explode

  Use the routing table to match the restful URL, distribute to different action processing, the most basic implementation, only consider routing distribution function

  Code as follows: <?php     class Router {       //routing table         Private $routers = Array (            Array ("name" => "userlist", "pattern" => "Get/user", "actio N "=>" User#get "),             Array (" name "=>" userinfo "," pattern "=>" get/user/:s " , "Action" => "User#getbyid"),             Array ("name" => "Useradd", "pattern" => " Post/user "," Action "=>" User#add "),             Array (" name "=>" Userupdate "," pattern "=>" Update/user "," Action "=>" User#update "),             Array (" name "=>" Userdel " , "pattern" => "Delete/user/:id", "Action" => "User#delete")        );          //Entry         Public Function dispatch () {      &NB Sp     $url = $_server["Request_uri"];            $method = $_server["Request_method"];               foreach ($this->routers as $router) {        &NBS P       $pattern = $router ["pattern"];                 $pats = Explode ("", $pattern);                 strcasecmp ($pats [0], $method) = 0) {      &NB Sp            ///current route matching                   &NBS P $params = $this->checkurl ($method, Strtolower ($url), Strtolower ($pats [1]));                     if ($params!= null) {        & nbsp               Array_shift ($params);                         $action = $router ["Action"];                        /Find the first matching route to execute, then return to                         return $this->invoke ($action, $params);                                   & nbsp }                           echo "404 Error";            //error 404        }           PR Ivate function Invoke ($action, $params) {            $acts = explode ("#", $action);             $className = $acts [0]. " Action ";             $methodName = $acts [1];             $actionDir = dirname (__file__). Directory_separator. " Action ";              //Loading action file   &NBsp         $classFile = $actionDir. Directory_separator $className. ". PHP ";             if (! file_exists ($classFile)) {            &NBSP ;  //404 error                 echo "404 error, no action found";                 return;            } else {                require $class File ";                //Using reflection execution method               &NBSP ; $RC = new Reflectionclass ($className);                 if (! $RC->hasmethod ($methodName)) {      &NBSP ;            //404 error                   &NBS P echo "404 error, no method found";         &nbsp           return;                } else {                & nbsp   $instance = $RC->newinstance ();                     $method = $RC->getmethod ($methodName);                     $method->invokeargs ($instance, $params);                            }        }          //Regular match check, and extract parameters         Private function Checkurl ($metho D, $str, $pattern) {           //echo "Check $str with $pattern <br>";             $ma = array ();             $pattern = LTrim (RTrim ($pattern, "/"));             $pattern = "/". Str_rePlace ("/", "/", $pattern). " /?$/";             $pattern = Str_replace (": S", "([^/]+)", $pattern);            //echo "pattern $pattern <br>";            //$str = "/". $str. " $/";             if (Preg_match ($pattern, $str, $ma) > 0) {                return $ma;                         return null;        }    ?>
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