I've created a webpage which uses JQuery to redirect the content of a form to another webpage using PHP to connect to a database to find some content. Unfortunately the content of the form is not transmitted properly because I get "Notice: Undefined index: postal_code in C:\wamp\www\mywebsite\target.php on line 8"
my code :
home.html
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<form action="/" id="myform">
<input type="text" name="postal_code" placeholder="Search..." />
<input type="submit" value="Search" />
</form>
<!-- the result of the sear开发者_StackOverflow社区ch will be rendered inside this div -->
<div id="result"></div>
<script>
$('#myform').submit(function() {
var url = 'target.php';
var postal_code = $('#postal_code').val();
$.post( url, { postal_code: postal_code },
function( data ) {
$( "#result" ).empty().append( data );
}
);
return false;
});
target.php
<?php
try
{
$pdo_options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_EXCEPTION;
$bdd = new PDO('mysql:host=localhost;dbname=mydatabase', 'root', '', $pdo_options);
$response = $bdd->prepare('SELECT city FROM city_list where postal_code = ?');
$response->execute(array($_POST['postal_code']));
echo '<ul>';
while ($data = $response->fetch())
{
?>
<br/>The city you entered the postal code is : <?php echo $data['city'];
}
$response->closeCursor();
}
catch (Exception $e)
{
die('Error : ' . $e->getMessage());
}
?>
You are searching for $('#postal_code').val();, however the input for postal_code has no ID.
Replace
<input type="text" name="postal_code" placeholder="Search..." />
With
<input type="text" name="postal_code" id="postal_code" placeholder="Search..." />
And it should work fine.
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
精彩评论