<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script src="jquery-2.1.0.min.js" type="text/javascript"></script>
<script>
$(function(){
$("#btn").click(function(){
var my_data="前台变量";
my_data=escape(my_data)+"";//编码，防止汉字乱码
$.ajax({
url: "index.php",
type: "POST",
data:{trans_data:my_data},
error: function(){
alert('Error loading XML document');
},
complete:function()
{
location.href = "index.php?trans_data=" + my_data;
}/* ,
success: function(data,status){//如果调用php成功
alert(unescape(data));//解码，显示汉字
} */
});
});
});
</script>
</head>
<body>
<form action="index.php" method="post">
<input type="text" name="title" value="标题"/>
<input type="submit" value="提交"/>
<input id="btn" type="button" value="点击"/>
</form>
</body>
</html>
php代码
<?php
header('Content-Type: text/html; charset=gb2312');
$backValue=$_GET['trans_data'];
echo $backValue;
?>