sort a multidimensional array by sql like order by clause

sort_array_multidim.php

<?php
    /**
    * @name Mutlidimensional Array Sorter.
    * @author Tufan Barış YILDIRIM
    * @link http://www.tufanbarisyildirim.com
    * @github http://github.com/tufanbarisyildirim
    *
    * This function can be used for sorting a multidimensional array by sql like order by clause
    *
    * @param mixed $array
    * @param mixed $order_by
    * @return array
    */
    function sort_array_multidim(array $array, $order_by)
    {
        //TODO -c flexibility -o tufanbarisyildirim : this error can be deleted if you want to sort as sql like "NULL LAST/FIRST" behavior.
        if(!is_array($array[0]))
            throw new Exception('$array must be a multidimensional array!',E_USER_ERROR);

        $columns = explode(',',$order_by);
        foreach ($columns as $col_dir)
        {
            if(preg_match('/(.*)([\s]+)(ASC|DESC)/is',$col_dir,$matches))
            {
                if(!array_key_exists(trim($matches[1]),$array[0]))
                    trigger_error('Unknown Column <b>' . trim($matches[1]) . '</b>',E_USER_NOTICE);
                else
                {
                    if(isset($sorts[trim($matches[1])]))
                        trigger_error('Redundand specified column name : <b>' . trim($matches[1] . '</b>'));

                    $sorts[trim($matches[1])] = 'SORT_'.strtoupper(trim($matches[3]));
                }
            }
            else
            {
                throw new Exception("Incorrect syntax near : '{$col_dir}'",E_USER_ERROR);
            }
        }

        //TODO -c optimization -o tufanbarisyildirim : use array_* functions.
        $colarr = array();
        foreach ($sorts as $col => $order)
        {
            $colarr[$col] = array();
            foreach ($array as $k => $row)
            {
                $colarr[$col]['_'.$k] = strtolower($row[$col]);
            }
        }
       
        $multi_params = array();
        foreach ($sorts as $col => $order)
        {
            $multi_params[] = '$colarr[\'' . $col .'\']';
            $multi_params[] = $order;
        }

        $rum_params = implode(',',$multi_params);
        eval("array_multisort({$rum_params});");


        $sorted_array = array();
        foreach ($colarr as $col => $arr)
        {
            foreach ($arr as $k => $v)
            {
                $k = substr($k,1);
                if (!isset($sorted_array[$k]))
                    $sorted_array[$k] = $array[$k];
                $sorted_array[$k][$col] = $array[$k][$col];
            }
        }

        return array_values($sorted_array);

    }


    #Example using.

    $array = array(
        array('name' => 'Tufan Barış','surname' => 'YILDIRIM'),
        array('name' => 'Tufan Barış','surname' => 'xYILDIRIM'),
        array('name' => 'Tufan Barış','surname' => 'aYILDIRIM'),
        array('name' => 'Tufan Barış','surname' => 'bYILDIRIM'),
        array('name' => 'Ahmet','surname' => 'Altay'),
        array('name' => 'Zero','surname' => 'One'),
    );

    $order_by_name = sort_array_multidim($array,'name DESC,surname ASC,xname DESC,name ASC');

    #output.
    echo '<pre>';
    var_dump($order_by_name);