php多域名跨域设置

遇到多域名跨域请求

public function _initialize()
	{
		header("Access-Control-Allow-Credentials:true");
//		header("Access-control-Allow-Origin:http://web.weiyuanwl.net");
//		header("Access-Control-Allow-Headers:content-type,cache-control,X-Requested-With");
        $allow_origin = array(
            'http://www.test1.com',
            'http://web.test2.net',
        );
        $origin = $_SERVER['HTTP_ORIGIN'];
        if(in_array($origin, $allow_origin)){  
		    header('Access-Control-Allow-Origin:'.$origin);
		    header("Access-Control-Allow-Headers:content-type,cache-control,X-Requested-With");    
		} 
	}