// klasa


    class st_parser // simple template pareser
    {   
        var $text, $const_rplc, $const_loop_start, $const_loop_stop;

        function st_parser($file_name = '')
        {
            $this->const_rplc = 'RPLC';

            $this->const_loop_start = 'LOOP_START';

            $this->const_loop_stop = 'LOOP_STOP';

            if ($file_name == '') return true;
 
            $tmp = ($tmp = file($file_name)) ? $tmp : array();

            $this->text = join('', $tmp);
        }

        function replace($mixed_arg)
        {
            $arg1 = $arg2 = array();

            if (!is_array($mixed_arg)) $mixed_arg = func_get_args();

            for ($i = 0; $i < count($mixed_arg); $i++)
            {
                $arg1[] = '<!--{' . $this->const_rplc . ':' . $mixed_arg[$i] . '}-->';

                $arg2[] = $mixed_arg[++$i];
            }

            $this->text = str_replace($arg1, $arg2, $this->text);
        }

        function loop_replace($loop_id, $a_rplc, $aa_val) 
        {
            foreach($a_rplc as $k => $v) $a_rplc[$k] = '<!--{' . $this->const_rplc . ':' . $v . '}-->';

            $reg = "|<!--\{$this->const_loop_start:$loop_id}-->(.*)<!--\{$this->const_loop_stop:$loop_id}-->|Us";

            if (!preg_match($reg , $this->text, $matches)) return false;

            foreach($aa_val as $k => $v) $str .= str_replace($a_rplc, $v, $matches[1]);

            $this->text = preg_replace($reg, $str, $this->text, 1);
        }

        function show()
        {
            print $this->text;
        }
    }




// przykład uzycia


    $stp = new st_parser('./tpls/jakis_plik.tpl');

    $stp->replace(
        'PAGE_TITLE', $page_title,
        'MENU', $menu, 
        'BODY', $body
        //itd...
    );

    // [CUT] ...

        while ($tmp = mysql_fetch_row($ret)) $tmp_array[] = $tmp;

        $stp->loop_replace(
            'GB_LIST', 
            array('REC_ID', 'TITLE', 'DATA', 'TRESC'),
            $tmp_array
        );

    // [CUT] ...

    $stp->show();




// wybrane przyklady z pliku *.tpl


<title>Piechnat Home Page - <!--{RPLC:PAGE_TITLE}--></title>

<!--{LOOP_START:GB_LIST}-->
<table class="rec">
  <tbody>
    <tr>
      <td style="width: 50%"><!--{RPLC:TITLE}--></td>
      <td align="right" style="width: 50%"><!--{RPLC:DATA}--></td>
    </tr>
    <tr>
      <td colspan="2"><!--{RPLC:TRESC}--></td>
    </tr>
  </tbody>
</table>
<!--{LOOP_STOP:GB_LIST}-->