PHP实例：用PHP简单实现多条件查询

<?php
     if ($page){
     $page_size=20;
     $result=mysql_query($query);
     #$message_count=mysql_result($result,0,"total");
     $message_count=10;
     $page_count=ceil($message_count/$page_size);
     $offset=($page-1)*$page_size;
     $query=$query." order by date desc limit $offset, $page_size";
     $result=mysql_query($query);
     if($result){
     $rows=mysql_num_rows($result);
     if($rows!=0){
     while($myrow=mysql_fetch_array($result)){
     echo "<tr>";
     echo "<td width='15' height='12'><img src='http://www.chinaz.com/program/2007/1018/image/home2.gif' width='14' height='14'></td>";
     echo "<td width='540' height='12'>$myrow[id] $myrow[tradetype] $myrow[address] $myrow[wuye]($myrow[housetype])<font style='font-size:9pt'>[$myrow[date]]</font>";
     echo "</td>";
     echo "<td width='75' height='12'><a href='http://www.chinaz.com/program/2007/1018/view_d.php?code=$myrow[code]' target='_blank'>详细内容</a></td>";
     echo "</tr>";
         }
       }
     else echo "<tr><td><div align='center'><img src='http://www.chinaz.com/program/2007/1018/image/sorry.gif'><br><br>没有找到满足你条件的记录</div></td></tr>";
     }
         $prev_page=$page-1;
         $next_page=$page+1;
         echo "<div align='center'>";
         echo " 第".$page."/".$page_count."页 ";
         if ($page<=1){
             echo "|第一页|";
            }
         else{
             echo "<a href='http://www.chinaz.com/program/2007/1018/$PATH_INFO?page=1'>|第一页|</a>";
             }
         echo " ";
         if ($prev_page<1){
             echo "|上一页|";
            }
         else{
             echo "<a href='http://www.chinaz.com/program/2007/1018/$PATH_INFO?page=$prev_page'>|上一页|</a>";
             }
         echo " ";
         if ($next_page>$page_count){
             echo "|下一页|";
             }
         else{
             echo "<a href='http://www.chinaz.com/program/2007/1018/$PATH_INFO?page=$next_page'>|下一页|</a>";
              }
         echo " ";
         if ($page>=$page_count){
             echo "|最后一页|";
               }
         else{
             echo "<a href='http://www.chinaz.com/program/2007/1018/$PATH_INFO?page=$page_count'>|最后一页|</a>";
             }
        echo "</div>";
    }
     else{
         echo "<p align='center'>现在还没有房屋租赁信息!</p>";
       }
   echo "<hr width="100%" size="1">";
  ?>
    </table>