mysql+php分页类（已测）_php技巧

代码如下:
/*
mysql_pager.class.php

三个参数。 mysql_query()的结果, url变量page, 您要的每页记录数
例子在这个文件底部
淡水河边整理测试
*/

class mysql_pager {
// define properties
var $page;
var $result;
var $results_per_page = 3;
var $total_pages;

/*
Define the methods

下面是构造函数，和类同名（>php4）
需要查询的结果句柄，当前页码，每页记录数
like: $f->mysql_pager($result, 1, 15);
*/

function mysql_pager( $result, $current_page, $results_per_page ) {

if(!$result){
echo "数据库未运行，结果集错误\n";
return;
}

$this->result = $result;

if(!$current_page || $current_page < 0)
$this->page = 1;
else $this->page = $current_page;

if(!emptyempty($results_per_page))
$this->results_per_page = $results_per_page;

$numrows = @mysql_num_rows($this->result);
if(!$numrows) {
echo "查询结果为空.\n";
return;
}

$this->total_pages = ceil($numrows / $this->results_per_page);
}

/*
下面是打印内容的函数，可以不用，也可以根据自己的需要扩展
这里只是打印出id
*/

function print_paged_results() {
echo "\n";
$start = ($this->page - 1) * $this->results_per_page;
mysql_data_seek($this->result, $start);
$x = 0;
for($i = 1; $i <= $this->results_per_page && $row = @mysql_fetch_array($this->result); $i++) {
if($x++ & 1) $bgcolor = "#F2F2FF";
else $bgcolor = "#EEEEEE";

echo "";
// 编辑这部分输出任何您想要的HTML

}

echo "

". $row["id"] . "

\n";
}

/*
下面是打印页码和链接的函数
在我们需要显示页码的地方调用
*/

function print_navigation() {
global $PHP_SELF;

echo "";

for($i = 1; $i <= $this->total_pages; $i++) { #loop to print << 1 2 3... $total_pages >>
if($i == 1 && $this->page > 1) #Prints the << first to goto the previous page (not on page 1)
echo "page - 1)."\" onMouseOver=\"status="Previous Page";return true;\" onMouseOut=\"status=" ";return true;\">?";

if($i == $this->page) #Doesn"t print a link itself, just prints page number
echo " $i ";

if($i != $this->page) #Other links that aren"t this page go here
echo " $i ";

if($i == $this->total_pages && $this->page != $this->total_pages) # Link for next page >> (not on last page)
echo "page + 1)."\" onMouseOver=\"status="Go to the Next Page";return true;\" onMouseOut=\"status=" ";return true;\">?";
}

echo "\n";
}

}

/*
mysql_connect($server, $uname, $pass );
mysql_select_db("$db");
$result= @mysql_query("Select * FROM table");

$p = new mysql_pager( $result, $page=$_GET["page"], 10 );
$p->print_navigation();
$p->print_paged_results();
$p->print_navigation();
*/
?>