PPS*_*PPS 6 html javascript ajax jquery
我们有一个完整的代码,用于通过带有JSON数据类型的Jquery AJAX从PHP获取值.这是代码.
HTML代码
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ajax submit</title>
<link href="css/main.css" type="text/css" media="screen, projection"rel="stylesheet" />
</head>
<body>
<div id="wrapper">
<div id="message" style="display: none;">
</div>
<div id="waiting" style="display: none;">
Please wait<br />
<img src="images/ajax-loader.gif" title="Loader" alt="Loader" />
</div>
<form action="" id="demoForm" method="post">
<fieldset>
<legend>Demo form</legend>
<span style="font-size: 0.9em;">TEST by ROD</span>
<p>
<label for="email">E-Mail:</label>
<input type="text" name="email" id="email" value="" />
</p>
<p>
<input type="submit" name="submit" id="submit" style="float: right; clear: both; margin-right: 3px;" value="Submit" />
</p>
</fieldset>
</form>
</div>
<script type="text/javascript" src="js/jquery/jquery-1.3.2.js"></script>
<script type="text/javascript" src="js/ajaxSubmit.js"></script>
</body>
</html>
PHP代码
sleep(3);
if (empty($_POST['email'])) {
$return['error'] = true;
$return['msg'] = 'You did not enter you email.';
}
else {
$return['error'] = false;
$return['msg'] = 'You\'ve entered: ' . $_POST['email'] . '.';
}
echo json_encode($return);
JS代码
$(document).ready(function(){
$('#submit').click(function() {
$('#waiting').show(500);
$('#demoForm').hide(0);
$('#message').hide(0);
$.ajax({
type : 'POST',
url : 'post.php',
dataType : 'json',
data: {
email : $('#email').val()
},
success : function(data){
$('#waiting').hide(500);
$('#message').removeClass().addClass((data.error === true) ? 'error' : 'success')
.text(data.msg).show(500);
if (data.error === true)
$('#demoForm').show(500);
},
error : function(XMLHttpRequest, textStatus, errorThrown) {
$('#waiting').hide(500);
$('#message').removeClass().addClass('error')
.text('There was an error.').show(500);
$('#demoForm').show(500);
}
});
return false;
});
});
我只想将此代码移动到HTML格式,实际上这些代码是由互联网用户制作的.由于我对AJAX/JS的了解有限.我们无法使用HTML数据类型制作AJAX.
整个计划很好,并根据我们的需要.目前我们只想禁用JSON并启用HTML DATATYPE.
Ben*_*ier 14
这是一个使用dataType html的版本,但这不太明确,因为我返回一个空字符串来表示错误.
Ajax调用:
$.ajax({
type : 'POST',
url : 'post.php',
dataType : 'html',
data: {
email : $('#email').val()
},
success : function(data){
$('#waiting').hide(500);
$('#message').removeClass().addClass((data == '') ? 'error' : 'success')
.html(data).show(500);
if (data == '') {
$('#message').html("Format your email correcly");
$('#demoForm').show(500);
}
},
error : function(XMLHttpRequest, textStatus, errorThrown) {
$('#waiting').hide(500);
$('#message').removeClass().addClass('error')
.text('There was an error.').show(500);
$('#demoForm').show(500);
}
});
post.php中
<?php
sleep(1);
function processEmail($email) {
if (preg_match("#^[a-zA-Z0-9_.-]+@[a-zA-Z0-9-]+.[a-zA-Z0-9-.]+$#", $email)) {
// your logic here (ex: add into database)
return true;
}
return false;
}
if (processEmail($_POST['email'])) {
echo "<span>Your email is <strong>{$_POST['email']}</strong></span>";
}