伙计们这让我疯狂。每个人都关闭我的问题说它已被问,但我不能正确的,因为我是新的Ajax和PHP。在下拉列表中使用ajax设置会话变量
我正在上降的Ajax调用向下选择事件:
$('#username').change(function() {
var user = $('#username').val();
$.ajax({
type: 'POST',
url: 'sessionvar.php',
data: {username: user},
success: function (msg) {
alert('Success');
}
});
});
我得到成功的警报。 但在PHP页面上变量没有设置。
PHP代码:
<?php
session_start();
if(isset($_POST['username'])){
$_SESSION['cellValue'] = $_POST['username'];
}else{
$_SESSION['cellValue'] = "good";
}
echo $_SESSION['cellValue'];
?>
代码始终是打印值好。
我的整个的html代码:
<!DOCTYPE html>
<html>
<head>
<title>FusionCharts Column 2D Sample</title>
</head>
<body>
<?php
session_start();
?>
<div>
// This will echo a select with name username. and when a value is
// selected the below ajax call is made.
<?php
require("userList.php");
?>
</div>
<button type="button">Click Me</button>
<div id="chart-container">LOADING....</div>
<script src="js/jquery-2.2.4.js"/>
<script src="js/fusioncharts.js"/>
<script src="js/fusioncharts.charts.js"/>
<script src="js/themes/fusioncharts.theme.zune.js"/>
<script type="text/javascript">
$(document).ready(function(){
$('#username').change(function() {
var user = $('#username').val();
$.ajax({
type: 'POST',
url: 'sessionvar.php',
data: {username: user},
success: function (msg) {
alert(msg);
}
});
});
});
</script>
</body>
</html>
什么是味精变量值?做console.log(msg); –
@Anant我在该页面上添加了会话开始。 –
@AbhijitJagtap msg值是我发送的数据,即用户名值。 –