[英]Post form data with AJAX and trigger PHPExcel action with one submit
[英]Ajax prevent form action and post form data
幾天來我一直在搜索示例,以嘗試對我的簡單電子郵件注冊表單進行故障排除。 我正在嘗試只向數據庫提交電子郵件,而不會離開或重新加載當前頁面。 我可以將新數據插入數據庫, 但不能通過Ajax函數插入。 我開始認為我的Ajax函數沒有被調用,因為即使有event.preventDefault();
功能,我的頁面被重定向到.php文件。 我在下面列出了我的腳本,該腳本當前位於HTML的<head></head>
部分中。
<script type="text/javascript">
$(document).ready(Function() {
$("#submitbtn").click(function(event) {
event.preventDefault();
var form = $(this),
emailcode = form.serialize(),
formUrl = form.attr('action'),
formMethod = form.attr('method');
/* responseMsg = $('#signup-response') */
if ( formData.length===0 ) {
function(msg){
alert('Invalid Email');
}
return false;
} else {
//send data to server
$.ajax({
url: formUrl,
type: formMethod,
data: emailcode,
success:function(data){
alert('Email Saved');
}
return false;
});
};
});
});
HTML
<form class="col-lg-5 form-group pull-right well" id="emailform" action="collector.php" method="POST" style="padding-top:6px;">
<label for="email-input">Sign up to receive updates</label>
<input type="email" class="form-control" id="emailcode" placeholder="Email" name="emaildata" autofocus></input>
<button type="submit" id="submitbtn" class="btn btn-success" style="width:60%">Sign Up</button>
</form>
的PHP
$emailcode = $_POST['emailcode'];
//Fetching from your database table.
$query = "INSERT INTO EmailCollector (EmailID, EmailCode, Active)
VALUES (NULL,'$emailcode', 0)";
$result = mysql_query($query);
mysql_close();
?>
我注意到一個快速的事情。
form = $(this) //it is holding submit button, not the form
emailcode = form.serialize(),
formUrl = form.attr('action'), //there is no attribute `action` to select because form is holding submit button
formMethod = form.attr('method'); //similarly, there is no attribute method
將您的表單選擇器更改為:
form = $('#emailForm')
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