您熟悉AJAX吗？如果您已经知道，请原谅我，但是如果您不知道，请原谅我：
Ajax将数据发布到外部PHP文件，该文件处理接收到的数据，并发送回答案。看起来像这样：
文件1：
<html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#Sel').change(function() {
var opt = $(this).val();
var someelse = 'Hello';
var more_stuff = 'Goodbye';
$.ajax({
type: "POST",
url: "receiving_file.PHP",
data: 'selected_opt=' + opt + '&something_else=' +someelse+'&more_stuff='+more_stuff,
success:function(data){
alert('This was sent back: ' + data);
}
});
});
});
</script>
</head>
<body>
<select id = "Sel">
<option value ="Song1">default value</option>
<option value ="Song2">Break on through</option>
<option value ="Song3">Time</option>
<option value ="Song4">Money</option>
<option value="Song5">Saucerful of Secrets</option>
</select>
<?PHP
$recd = $_POST['selected_opt'];
echo 'You chose: ' . $recd;
602392714
清零编程群