Update not working PHP MYSQL CRUD
Question
I have this PHP code, when I try to click the yes button and check the database.The value remains the same. Is there something I am doing wrong? I also check my SQL query and it seems to be working fine but when I incorporate it in the php code . It is not working anymore?
<?php
require 'database.php';
$id = 0;
if ( !empty($_GET['gpx_field_id'])) {
$id = $_REQUEST['gpx_field_id'];
}
if ( !empty($_POST)) {
// keep track post values
$id = $_POST['gpx_field_id'];
// delete data
$pdo = Database::connect();
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "UPDATE field_info SET verify = '1' WHERE gpx_field_id = ? ";
$q = $pdo->prepare($sql);
$q->execute(array($id));
Database::disconnect();
header("Location: index.php");
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<link href="assets/bootstrap/css/bootstrap.min.css" rel="stylesheet">
<script src="assets/bootsrap/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="span10 offset1">
<div class="row">
<h3>Verify a Field</h3>
</div>
<form class="form-horizontal" action="verify.php" method="post">
<input type="hidden" name="gpx_field_id" value="<?php echo $id;?>"/>
<p class="alert alert-error">Are you sure to verify this field ?</p>
<div class="form-actions">
<button type="submit" class="btn btn-danger">Yes</button>
<a class="btn btn-danger" href="index.php">No</a>
</div>
</form>
</div>
</div> <!-- /container -->
</body>
</html>
2 answers
solution1
0 2016-05-11 09:04:31
Here I assume your query is working fine so Please change your php code as below...
<?php
require 'database.php';
$id = 0;
if ( !empty($_GET['gpx_field_id'])) {
$id = $_REQUEST['gpx_field_id'];
}
if ( !empty($_POST)) {
try {
$pdo = Database::connect();
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "UPDATE field_info SET verify = '1' WHERE gpx_field_id IN :id ";
$q = $pdo->prepare($sql);
$q->execute(array($id));
Database::disconnect();
header("Location: index.php");
}
catch(PDOException $e) {
echo $e->getMessage();
}
}
?>
Hope it will help you.
solution2
0 2016-05-11 14:03:15
You specify $id = 0 at the top, but it is never updated to some 'real' value. Therefore, the form is populated with
<input type="hidden" name="gpx_field_id" value="0"/>
and thus gpx_field_id always remains 0 . Then, your query will update all rows with WHERE gpx_field_id = 0 . Most probably, those rows will not exist...
You do need to get a proper value for $id before you insert it in the form.
On a side-note, since you are using html5 ( <!DOCTYPE html> ), the closing tag for input should be omitted. Write instead: <input type="hidden" ... > , leaving out the forward slash, just as you did with the meta and link tags in the head section.
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