在前端里面，解决跨域的时候总显得那么的恶心，什么jsonp啊，ajax啊，CORS啊什么的，总觉得是在钻空子进行跨域，其实在PHP文件里面只需要加一段代码就可以跨域了，前端你该怎么写还是怎么写，post，get随便用：
header("Access-Control-Allow-Origin:*");
header('Access-Control-Allow-Methods:POST');
header('Access-Control-Allow-Headers:x-requested-with, content-type');
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | <?php// 制定允许其他域名访问header("Access-Control-Allow-Origin:*");// 响应类型header('Access-Control-Allow-Methods:POST');// 响应头设置header('Access-Control-Allow-Headers:x-requested-with, content-type');//$callback = isset($_REQUEST['callback']) ? trim($_REQUEST['callback']) : ''; //jsonp回调参数，必需function getKey($key,$default=""){ return trim(isset($_REQUEST[$key])?$_REQUEST[$key]:$default);}$id = getKey("id");$conn = mysqli_connect("localhost","root","","test") or die("连接失败");$conn->query("set names utf8");$sql = "select * from data where ".$id." is not null";$result = $conn->query($sql);$arr = [];while($row=$result->fetch_assoc()){ array_push($arr,json_encode($row));}$json = json_encode($arr); //json 数据print_r($json); |
发表评论 取消回复