captchaagent.php

См. документацию.

<?php
 
class CCaptchaAgent
{
    public static function DeleteOldCaptcha($sec = 3600)
    {
        global $DB;
 
        $sec = intval($sec);
 
        $time = $DB->CharToDateFunction(GetTime(time()-$sec,"FULL"));
        if (!$DB->Query("DELETE FROM b_captcha WHERE DATE_CREATE <= ".$time))
            return false;
 
        return "CCaptchaAgent::DeleteOldCaptcha(".$sec.");";
    }
}