PHP URL路由类实例_php实例
前段时间写了个关于手机应用的api,一直是用的query_string这种地址,而且还是根据一个act参数来区分所有的动作,这种让开发人员看起来比较费眼。本来想改写为“?c=controller&m=method&type=3&id=1” 这种形式,利用m参数来载入文件并进行实例化,后来看了sina weibo api 是对地址进行了路由。也决定跟风对地址路由。本来CI框架自己自带路由效果,但是因为考虑是写api,想写的比较纯粹一点。
支持默认控制器(index)和方法(index):
index.php
index.php/controller
index.php/controller/method
index.php/controller/method/prarme1/value1
index.php/controller/method/param1/value1/param2/value2.....
具体类如下:
$APP_PATH= str_replace($_SERVER['DOCUMENT_ROOT'], '', __FILE__);
$SE_STRING=str_replace($APP_PATH, '', $_SERVER['REQUEST_URI']); //计算出index.php后面的字段 index.php/controller/methon/id/3
$SE_STRING=trim($SE_STRING,'/');
//echo $SE_STRING.'
';
//这里需要对$SE_STRING进行过滤处理。
$ary_url=array(
'controller'=>'index',
'method'=>'index',
'pramers'=>array()
);
//var_dump($ary_url);
$ary_se=explode('/', $SE_STRING);
$se_count=count($ary_se);
//路由控制
if($se_count==1 and $ary_se[0]!='' ){
$ary_url['controller']=$ary_se[0];
}else if($se_count>1){//计算后面的参数,key-value
$ary_url['controller']=$ary_se[0];
$ary_url['method']=$ary_se[1];
if($se_count>2 and $se_count%2!=0){ //没有形成key-value形式
die('参数错误');
}else{
for($i=2;$i $ary_kv_hash=array(strtolower($ary_se[$i])=>$ary_se[$i+1]);
$ary_url[pramers]=array_merge($ary_url[pramers],$ary_kv_hash);
}
}
}
$module_name=$ary_url['controller'];
$module_file=MODULE_DIR.$module_name.'.class.php';
//echo $module_file;
$method_name=$ary_url['method'];
if(file_exists($module_file)){
include($module_file);
$obj_module=new $module_name(); //实例化模块m
if(!method_exists($obj_module, $method_name)){
die('方法不存在');
}else{
if(is_callable(array($obj_module, $method_name))){ //该方法是否能被调用
//var_dump($ary_url[pramers]);
$get_return=$obj_module->$method_name($ary_url[pramers]); //执行a方法,并把key-value参数的数组传过去
if(!is_null($get_return)){ //返回值不为空
var_dump($get_return);
}
}else{
die('该方法不能被调用');
}
}
}
else
{
die('模块文件不存在');
}
?>

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