JS 跨域請求

function getajax(geturl){
	$.ajax({  
	   type: "GET",  
	   async: false,  
	   url:geturl,  
	   dataType: "jsonp",  
	   jsonp: "callback",
	   jsonpCallback:"refunctions",
	   success: function(json){ 
	   alert(json[0].name);
	   alertdialog("請求成功");  
	  
	   },  
	   error: function(){  
		   alertdialog("請求失敗");  
	   }  
	});
}
           

php:

public function jsonp_urls(){
        $data[0]['id']=1;
        $data[0]['name']="xiaozhaoquan";
        $data[0]['passwd']="12qazwsx";
        $res = json_encode($data);
		echo 'refunctions('.$res.')';
  }