求把版主这个分页种改成支持php4的

<?php<br />
class paging {<br />
  public static $count = 0;<br />
  public static $size = 0;<br />
  public static $page = 0;<br />
  <br />
  <br />
  static function prepare($sql, $pagesize='') <br />
  {	$pagesize=constant("page_size");<br />
    $page = isset($_GET['page']) ? $_GET['page'] : 1;<br />
    $pageon = ($page - 1) * $pagesize;<br />
    $sql = preg_replace('/select\s/i', '$0SQL_CALC_FOUND_ROWS ', $sql) . " limit $pageon, $pagesize";<br />
    $rs = mysql_query($sql);<br />
    $p = mysql_query('SELECT FOUND_ROWS()');<br />
    list(self::$count)= mysql_fetch_row($p);<br />
    self::$size= $pagesize=10;<br />
    self::$page = $page;<br />
    return $rs;<br />
  }<br />
  <br />
  <br />
  <br />
  static function bar($tpl='') {<br />
    if(!$tpl) $tpl = '<a href=?reset>首页</a> <a href=?prve>上一页</a> <a href=?next>下一页</a> <a href=?end>尾页</a>';<br />
    $count = ceil(self::$count / constant("page_size"));<br />
    $page = self::$page;<br />
    unset($_GET['page']);<br />
    $d = array(<br />
      'reset' => 1,<br />
      'prve' => $page > 1 ? $page - 1 : 1,<br />
      'next' => $page < $count ? $page + 1 : $count,<br />
      'end' => $count,<br />
    );<br />
    foreach($d as $k=>$v) {<br />
      $_GET['page'] = $v;<br />
      $tpl = str_replace($k, http_build_query($_GET), $tpl);<br />
    }<br />
    return $tpl."当前第".$page."页|共".$count."页";<br />
  }<br />
}<br />
/*<br />
<br />
把<br />
 $sql =".....";<br />
 $rs = mysql_query($sql);<br />
 或<br />
 $rs = mysql_query("select ....");<br />
之类的 <br />
改作<br />
 include 'paging.php';<br />
 $rs = paging::prepare($sql, 每页行数);<br />
 在需要出现分页条的地方写入<br />
 paging::bar();<br />
 <br />
就可以了<br />
<br />
<br />
*/<br />
?>