你不可错过的一个php分页类(mysql)
时间:2021-07-01 10:21:17
帮助过:20人阅读
/* - 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
- */
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 " ". $row["id"] . " | "; - // 编辑这部分输出任何您想要的HTML
- }
- echo "
\n"; - }
/* - 下面是打印页码和链接的函数,在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 != $this->total_pages) # Link for next page >> (not on last page) - echo "page + 1)."\" onMouseOver=\"status="Go to the Next Page";return true;\" onMouseOut=\"status=" ";return true;\">?";
- }
echo "\n"; - }
- }
/* 例子 http://bbs.it-home.org - mysql_connect($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();
- */
- ?>
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