Jquery：（main.jsファイル）
$(document).ready(function(){
$('.ajaxform').on('submit', function(e){
e.preventDefault();
$.ajax({
// give your form the method POST
type: $(this).attr('method'),
// give your action attribute the value ajaxadd.php
url: $(this).attr('action'),
data: $(this).serialize(),
dataType: 'json',
cache: false,
})
.success(function(response) {
// remove all errors
$('input').removeClass('error').next('.errormessage').html('');
// if there are no errors and there is a result
if(!response.errors && response.result) {
// success
// loop through result and append values in message1 div
$.each(response.result, function( index, value) {
$('#message1').append(index + ': ' + value + '<br/>');
});
} else {
// append the error to the form
$.each(response.errors, function( index, value) {
// add error classes
$('input[name*='+index+']').addClass('error').after('<div class="errormessage">'+value+'</div>')
});
}
});
});
});
PHP（ajaxadd.phpファイル）
<?php
// assign your post value
$inputvalues = $_POST;
// assign result vars
$errors = false;
$returnResult = false;
$mysqli = new mysqli('host', "db_name", "password", "database");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
// escape your values
foreach ($inputvalues as $key => $value) {
if(isset($value) && !empty($value)) {
$inputvalues[$key] = htmlspecialchars( $mysqli->real_escape_string( $value ) );
} else {
$errors[$key] = 'The field '.$key.' is empty';
}
}
if( !$errors ) {
// insert your query
$mysqli->query("
INSERT INTO `table`(`ew`, `mw`)
values ('".$inputvalues['ew1']."', '".$inputvalues['mw']."')
");
// select your query
// this is for only one row result
$addresult = "
SELECT *
FROM `table`
WHERE `ew` = '".$inputvalues['ew1']."'
ORDER BY `id` DESC
LIMIT 1
";
if( $result = $mysqli->query($addresult) ) {
// collect results
while($row = $result->fetch_assoc())
{
// assign to new array
// make returnResult an array for multiple results
$returnResult = $row;
}
}
}
// close connection
mysqli_close($mysqli);
// print result for ajax request
echo json_encode(['result' => $returnResult, 'errors' => $errors]);
exit;
?>
HTML：
<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>Ajax form submit</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<form class="ajaxform" action="ajaxadd.php" method="POST">
<input type="text" name="ew1" />
<input type="text" name="mw" />
<button type="submit">Submit via ajax</button>
</form>
<div id="message1"></div>
<script src="https://code.jquery.com/jquery-1.12.0.min.js"></script>
<script>window.jQuery || document.write('<script src="js/vendor/jquery-1.12.0.min.js"><\/script>')</script>
<script src="main.js"></script>
</body>
</html>