/**  
* Функция для запроса к БД MySQL. 
*/ 
    function mysqlQuery($sql, $print = false) 
    {
        $result = mysql_query($sql); 
        
        if($result === false || $print) 
        { 
            $error =  mysql_error(); 
            $trace =  debug_backtrace(); 
            
            $head = $error ?'<b style="color:red">MySQL error: </b><br> 
            <b style="color:green">'. $error .'</b><br><br>':NULL;     
             
            $error_log = date("Y-m-d h:i:s") .' '. $head .' 
            <b>Query: </b><br> 
            <pre><span style="color:#CC0000">'. $trace[0]['args'][0] .'</pre></span><br><br>
            <b>File: </b><b style="color:#660099">'. $trace[0]['file'] .'</b><br> 
            <b>Line: </b><b style="color:#660099">'. $trace[0]['line'] .'</b>'; 
             
/** 
* @TODO To clean in release 
*/ 
//----------------------------- 
           die($error_log); 
//----------------------------- 

            file_put_contents($_SERVER['DOCUMENT_ROOT'] .'/log/mysql.log', strip_tags($error_log) ."\n\n", FILE_APPEND); 
            header("HTTP/1.1 404 Not Found"); 
            die(); 
        } 
        else 
            return $result; 
    }