Button to update MySQL column not working - php

Question

I want to update my database with an SQL statement once someone clicks a button on the website. I've tried something, no success. Can you guys help me ? Here's the code:
http://pastebin.com/D0S83Jgh
Don't know if I made this question correctly, I'm new here.

Answer 1

Your prepared statement is wrong.
The code I use with pdo to do a query is this:
$sqlUpd = $upd->prepare("UPDATE league_signups SET approved='1' WHERE id = :id");
$q->bindParam(':id', $id, PDO::PARAM_STR);
$q->execute();
Should work like a charm.

Answer 2

Get this code out of the main loop: while($row = $q->fetch(PDO::FETCH_ASSOC)) {}
<?php
include('pdoconnect.php');
$id = isset($row['id'];
if(isset($_REQUEST['approve']))
{
$sqlUpd = "UPDATE league_signups SET approved='1' WHERE id=$id";
$q = $upd->prepare($sqlUpd);
$q->execute();
}
if(isset($_REQUEST['unapprove']))
{
$sqlUpd = "UPDATE league_signups SET approved='0' WHERE id=$id";
$q = $upd->prepare($sqlUpd);
$q->execute();
}
?>
Put this code after the loop ending or the beginning of your code...
The data you want to update comes from the checkbox am I right? then you may want to make a loop to update all the values selected with checkbox to the corresponding action 'approve' or 'unapproved'
remove include('pdoconnect.php'); its utterly unnecessary if you are including this file from the beginning already
<?php
// checkbox[] it's an array...
$UpdateIDs = (isset($_REQUEST['checkbox'])) ? $_REQUEST['checkbox'] : [];
// check if $_REQUEST['approve'] is set else check if $_REQUEST['unapprove'] is set else set $approve to null;
$approved = (isset($_REQUEST['approve']) ?
$_REQUEST['approve'] :
(isset($_REQUEST['unapprove'])) ? $_REQUEST['unapprove'] : null;
if(!is_null($approved))
{
try {
foreach($UpdateIDs as $ID)
{
$stmt = $upd->prepare("UPDATE league_signups SET approved=:approved WHERE id=:id");
$stmt->execute([
':approved' => $approved,
':id' => $ID
]);
}
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
}