### 多个域名 ```php <?php $origin = ['http://localhost:8080','http://localhost:8081']; if(in_array($_SERVER["HTTP_ORIGIN"],$origin)){ $AllowOrigin = $_SERVER["HTTP_ORIGIN"]; header("Access-Control-Allow-Origin: ".$AllowOrigin ); } ``` ### 单个域名 ```php <?php header("Access-Control-Allow-Origin: http://localhost:8080"); ```