Mysql not being updated - php

Question

Im trying to update a database using php.
The site im working on , i have a local copy and a copy on a server.
It works locally , but on the server it shows that it worked , but does not update the database.
I have checked that the id and data variables do actually have a value and teh connection is working.
This is my code :
<?php
include("../../config/connect.php");
if($_GET['id'] and $_GET['data'])
{
$id = $_GET['id'];
$data = $_GET['data'];
$key = $_GET['key'];
echo $id;
echo "<br>";
echo $data;
echo "<br>";
echo $key;
echo "<br>";
if(mysqli_query($connection, "update userbadges set level='$data' where id='$id'"));
echo 'success';
}
?>
Edit Connect.php
<?php
$connection = mysqli_connect('localhost', 'myusername', 'mypassword', 'leaderboard');
?>

Answer 1

You need to be checking everything to do with the mysqli_ calls
connect.php
<?php
$connection = mysqli_connect('localhost', 'myusername',
'mypassword', 'leaderboard');
if (!$connection) {
die('Connect Error (' . mysqli_connect_errno() . ') '
. mysqli_connect_error());
}
Your code:
<?php
include("../../config/connect.php");
if( isset($_GET['id'], $_GET['data'], $_GET['key']) ) {
$data = $_GET['data'];
$id = $_GET['id'];
$key = $_GET['key'];
echo $id;
echo "<br>";
echo $data;
echo "<br>";
echo $key;
echo "<br>";
$result = mysqli_query($connection,
"update userbadges set level='$data' where id='$id'");
if(! $result) {
echo mysqli_error($connections);
exit;
}
echo 'database update ' . mysqli_affected_rows($connection) . ' rows';
} else {
echo 'One of the required params is missing';
if ( $_GET ) {
print_r($_GET);
}
?>
Now if there is a problem like you forgot to change the mysql connection userid and password, or your hosting company use a seperate database server so localhost is not right, you will be told about the error.