# index.php页面内重点
## 1、 获取支付状态：判断是否支付成功的状态status = success
~~~
<?php
$status = '';
if (isset($_GET['status']) && !empty($_GET['status'])) {
$status = $_GET['status'];
}
?>
~~~
## 2、页面实现websocket
~~~
var wsServer = 'ws://192.168.33.10:9504';//ip+端口
var websocket = new WebSocket(wsServer);
websocket.onopen = function (client) {
websocket.send("<?php echo $status?>");//向后端发送是否成功购买的状态
};
websocket.onmessage = function (client) {
//接收后端发送过来的数据【已经被购买过数据】
if (client.data) {
var data = JSON.parse(client.data);
sc.get(data).status('unavailable');
}
};
websocket.onclose = function (client) {
//是否断开连接
console.log("Disconnected");
};
websocket.onerror = function (client, e) {
//错误信息
console.log('Error occured: ' + client.data);
};
~~~
