php分页代码

$query=mysql_query($sqlstr); $num=mysql_num_rows($query); $pagecount=ceil($num/$pagesize); if(isset($_GET['page'])){

$page= $_GET['page']; }else{ $page=1;

}

$start=($page-1)*$pagesize;

$sqlstr=$sqlstr.\" limit $start,$pagesize\"; return $pagecount; }

function pageshow($pagecount){ $webpage=$_SERVER['REQUEST_URI']; if(strpos($webpage,\"?\")){

$webpage= $webpage; }else{

$webpage=$webpage.\"?\"; }

if(strpos($webpage,\"&page\")){

$webpage=substr( $webpage, 0, strpos( $webpage,\"&page\") ); }else if(strpos($webpage,\"?page\")){ $webpage=substr( $webpage, 0, strpos( $webpage,\"page\") );

}

if(isset($_GET['page'])){ $page= $_GET['page'];

}else{ $page=1;

}

if($page<=1){

$pagestr=\" 首页 上一页 \" }else{ $pagestr=\"

;

首\";

页

 href='\".$webpage.\"&page=1'>

href='\".$webpage.\"&page=\".($page-1).\"'>上一页  }

if($page>=$pagecount){

$pagestr=$pagestr. \" 下一页  最后一页 \" ;

页

}else{ $pagestr=$pagestr. \" 下一  最后一页 \";

}

}

echo $pagestr;