sakura/libraries/Bans.php

<?php
namespace Sakura;

/**
 * User banishment management.
 * 
 * @package Sakura
 * @author Julian van de Groep <me@flash.moe>
 */
class Bans
{
    /**
     * Checks if a user is banned.
     * 
     * @param int $uid The ID of the user that is being checked.
     * 
     * @return array|bool Either false or an array containing information about the ban.
     */
    public static function checkBan($uid)
    {

        // Attempt to get a ban from this user
        $bans = Database::fetch('bans', true, ['user_id' => [$uid, '=']]);

        // Reverse the array so new bans are listed first
        $bans = array_reverse($bans);

        // Go over each ban
        foreach ($bans as $ban) {
            // Check if it hasn't expired
            if ($ban['ban_end'] != 0 && $ban['ban_end'] < time()) {
                // If it has delete the entry and continue
                Database::delete('bans', ['id' => [$ban['user_id'], '=']]);
                continue;
            }

            // Return the ban if all checks were passed
            return [

                'user' => $ban['user_id'],
                'issuer' => $ban['ban_moderator'],
                'issued' => $ban['ban_begin'],
                'expires' => $ban['ban_end'],
                'reason' => $ban['ban_reason'],

            ];
        }

        // Else just return false
        return false;
    }
}