我知道有很多类似的问题，但我花了两天时间来解决这个完全相同的问题，然后我就放弃了。
所以提交表单后，我想阻止当前页面(updates.php)重定向到另一个页面(test.php)。 我正在尝试使用 Jquery Ajax 来做到这一点，但在这一点上，我愿意接受任何解决方案。
updates.php:
<form action="test.php" method="post">
<div class="row form-group">
<div class="col-md-12">
<label class="sr-only" for="name">Name</label>
<input type="text" id="name" name="name" class="form-control" style="background:white;opacity:.5;border:none;" placeholder="Name:" required>
</div>
</div>
<input type = "hidden" id="id" name = "id" value = "4" />
<div class="row form-group">
<div class="col-md-12">
<label class="sr-only" for="subject">Comment</label>
<input type="text" name="subject" id="subject" class="form-control" style="background:white;opacity:.5;border:none;" placeholder="Write a comment..." required>
</div>
</div>
<div class="form-group">
<input type="submit" value="Post Comment" class="btn btn-primary">
</div>
</form>
test.php:
<?php
$id = $_POST['id'];
$username = $_POST['name'];
$comment = $_POST['subject'];
if(!empty($username) || !empty($comment))
{
$conn = mysqli_connect('localhost','Admin','admin123','website');
if(!$conn)
{
echo "Connection Error: " . mysqli_connect_error();
}
else
{
$INSERT = "INSERT INTO comments (id, name, comment) VALUES (?,?,?)";
$stmt = $conn -> prepare($INSERT);
$stmt -> bind_param("iss", $id, $username, $comment);
$stmt -> execute();
}
}
else { echo "All fields are required"; die();}
?>
无论我做什么，我都无法阻止 test.php 打开。
最佳答案
尝试将此作为 update.php 文件:
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
function submitWithAjax(){
var name = document.getElementById("name").value;
var id = document.getElementById("id").value;
var subject = document.getElementById("subject").value;
$.post( "test.php", {name: name, id: id, subject: subject})
.done(function(data) {
alert( "Data Loaded: " + data );
});
}
</script>
</head>
<body>
<form>
<div class="row form-group">
<div class="col-md-12">
<label class="sr-only" for="name">Name</label>
<input type="text" id="name" name="name" class="form-control" style="background:white;opacity:.5;border:none;" placeholder="Name:" required>
</div>
</div>
<input type = "hidden" id="id" name = "id" value = "4" />
<div class="row form-group">
<div class="col-md-12">
<label class="sr-only" for="subject">Comment</label>
<input type="text" name="subject" id="subject" class="form-control" style="background:white;opacity:.5;border:none;" placeholder="Write a comment..." required>
</div>
</div>
<div class="form-group">
<input type="submit" value="Post Comment" class="btn btn-primary" onclick="event.preventDefault();submitWithAjax();">
</div>
</form>
</body>
</html>
关于javascript - 使用 Jquery Ajax PHP 提交表单，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59122074/