我想为我的网站建立一个时事通讯订阅功能。我想把所有输入保存到主机文件夹中的txt文件中。然而，我不想在人们提交后切换页面。只需显示一条弹出消息，说"谢谢你的订阅"就完美了。我知道如何使用PHP在单独的页面中显示消息，但不知道如何在弹出框中显示。这是我的html和PHP代码。请帮忙，非常感谢。
<html>
<head>
<title></title>
</head>
<body>
<form>
<form action="myprocessingscript.php" method="post">
<input name="field1" type="text" />
<input name="field2" type="text" />
<input type="submit" name="submit" value="Save Data">
</form>
<a href='data.txt'>Text file</a>
</body>
PHP函数是
<?php
if(isset($_POST['field1']) && isset($_POST['field2'])) {
$data = $_POST['field1'] . '-' . $_POST['field2'] . "'n";
$ret = file_put_contents('/tmp/mydata.txt', $data, FILE_APPEND | LOCK_EX);
if($ret === false) {
die('There was an error writing this file');
}
else {
echo "$ret bytes written to file";
}
}
else {
die('no post data to process');
}
一旦您将jQuery包含到页面中，以下内容应该会起作用：
// process the form
$('form').submit(function(event) {
// get the form data
// there are many ways to get this data using jQuery (you can use the class or id also)
var formData = {
'field1' : $('input[name=field1]').val(),
'field2' : $('input[name=field2]').val()
};
// process the form
$.ajax({
type : 'POST', // define the type of HTTP verb we want to use (POST for our form)
url : 'myprocessingscript.php', // the url where we want to POST
data : formData, // our data object
dataType : 'json', // what type of data do we expect back from the server
encode : true
})
// using the done promise callback
.done(function(data) {
// log data to the console so we can see
console.log(data);
// data is the output from your php, check it and display alert appropriately
// here we will handle errors and validation messages
});
// stop the form from submitting the normal way and refreshing the page
event.preventDefault();
});
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