function page ($totalPage , $currentPage,$url ,$halfPer,$imagePath)
{
    $total=$totalPage;
    $currentPage=($currentPage<1)?1:$currentPage;
    $currentPage=($currentPage>$totalPage)?$totalPage:$currentPage;

    //echo $currentPage;
    $re="";
    $re .= ( $currentPage > 1 )
        ? "<td><a href=\"$url=1\">首页</a></td>\n<td><a href=\"$url=".($currentPage-1)."\">上一页</a></td>\n"
        : "<td>首页</td>\n";
    for ( $i = $currentPage - $halfPer,$i >= 1 || $i = 1 ,$j = $currentPage + $halfPer, $j < $totalPage || $j = $totalPage;$i <= $j ;$i++ )
    {//核心算法！
        $re .= ($i == $currentPage)
            ? "<td><b class=currentPage> [$i] </b></td>\n"
            : "<td><a href=\"$url=$i\"> [$i] </a></td>\n";
    }
    $re .= ( $currentPage < $total )
        ? "<td><a href=\"$url=" . ( $currentPage + 1 ) . "\">下一页</a></td>\n<td><a href=\"$url=" . ( $total )."\">尾页</a>\n</td>"
        : "<td>尾页</td>\n";
    $re="<table style=text-align:center><tr>$re</tr></table>";
    return $re;
}

$total_row=...;//此为您检索出来的总的记录数
$pagesize=10;
$totalPage        = intval($total_row/$pagesize)+1  ; //总页数    ,为什么要加1呢。呵呵。自己去想想：）        
$currentPage    = intval($_GET['page']);        
$url        = "?page";            
$halfPer        = 5;                    
$imagePath    ="images";                
$pageHtml        = page ( $totalPage , $currentPage,$url ,$halfPer,$imagePath);
//echo $pageHtml ;
    $currentPage=($currentPage<1)?1:$currentPage;
    $currentPage=($currentPage>$totalPage)?$totalPage:$currentPage;
//上面这两句大家能明白意思不,不要被那个？：吓到，其实就等到if...else.....呵呵