PHP实现路由映射到指定控制器

自定义路由的功能，指定到pathinfo的url上,再次升级之前的脚本 

SimpleLoader.php

<?phpclass SimpleLoader{ public static function run($rules=array()){ header("content-type:text/html;charset=utf-8"); self::register(); self::commandLine(); self::router($rules); self::pathInfo(); } //自动加载 public static function loadClass($class){ $class=str_replace('//', '/', $class); $dir=str_replace('//', '/', __DIR__); $class=$dir."/".$class.".php"; if(!file_exists($class)){  header("HTTP/1.1 404 Not Found"); } require_once $class;  } //命令行模式 public static function commandLine(){ if(php_sapi_name()=="cli"){  $_SERVER['PATH_INFO']="";  foreach ($_SERVER['argv'] as $k=>$v) {  if($k==0) continue;  $_SERVER['PATH_INFO'].="/".$v;  } } } //路由模式 public static function router($rules){ if(isset($_SERVER['PATH_INFO']) && !empty($rules)){  $pathInfo=ltrim($_SERVER['PATH_INFO'],"/");  foreach ($rules as $k=>$v) {  $reg="/".$k."/i";  if(preg_match($reg,$pathInfo)){   $res=preg_replace($reg,$v,$pathInfo);   $_SERVER['PATH_INFO']='/'.$res;  }  } } } //pathinfo处理 public static function pathInfo(){ if(isset($_SERVER['PATH_INFO'])){  $pathinfo=array_filter(explode("/", $_SERVER['PATH_INFO']));  for($i=1;$i<=count($pathinfo);$i++){  $key=isset($pathinfo[$i]) ? $pathinfo[$i] : '';  $value=isset($pathinfo[$i+1]) ? $pathinfo[$i+1] :"";  switch ($i) {   case 1:   $_GET['m']=ucfirst($key);   break;   case 2:   $_GET['c']=ucfirst($key);   break;   case 3:   $_GET['a']=$key;   break;   default:   if($i>3){    if($i%2==0){    $_GET[$key]=$value;    }   }   break;  }  } } $_GET['m']=!empty($_GET['m']) ? ucfirst($_GET['m']) : 'Index'; $_GET['c']=!empty($_GET['c']) ? ucfirst($_GET['c']) : 'Index'; $_GET['a']=!empty($_GET['a']) ? $_GET['a'] : 'index'; $class="//Controller//{$_GET['m']}//{$_GET['c']}"; $controller=new $class; if(method_exists($controller, $_GET['a'])){  $controller=new $class;  $controller->$_GET['a'](); }else{  header("HTTP/1.1 404 Not Found");  echo "404"; } } //致命错误回调 public static function shutdownCallback(){ $e=error_get_last(); if(!$e) return; self::myErrorHandler($e['type'],'<font color="red">Fatal Error</font> '.$e['message'],$e['file'],$e['line']); } //错误处理 protected static function myErrorHandler($errno,$errstr,$errfile,$errline){ list($micseconds,$seconds)=explode(" ",microtime()); $micseconds=round($micseconds*1000); $micseconds=strlen($micseconds)==1 ? '0'.$micseconds : $micseconds; if(php_sapi_name()=="cli"){  $break="/r/n"; }else{  $break="<br/>"; } $mes="[".date("Y-m-d H:i:s",$seconds).":{$micseconds}] ".$errfile." ".$errline." line ".$errstr.$break; echo $mes;  } //注册 public static function register(){ error_reporting(0); set_error_handler(function($errno,$errstr,$errfile,$errline){  self::myErrorHandler($errno,$errstr,$errfile,$errline); }); register_shutdown_function(function(){  self::shutdownCallback(); }); spl_autoload_register("self::loadClass"); }}