主要是用到了php的超级全局变量$_SERVER获取:可参考一下代码适当修改:
if (array_key_exists('HTTP_ORIGIN',$_SERVER)) {
$origin = $_SERVER['HTTP_ORIGIN'];
}
else if (array_key_exists('HTTP_REFERER',$_SERVER)) {
$origin = $_SERVER['HTTP_REFERER'];
} else {
$origin = $_SERVER['REMOTE_ADDR'];
}