php mysql paging implementation code_PHP tutorial
This is a relatively perfect paging class. It supports form input jump and select jump paging. It also supports offset paging for the previous 10 pages and the next 10 pages. */
This is a relatively perfect paging class. It supports form input jump and select jump paging. It also supports offset paging for the previous 10 pages and the next 10 pages.
*/
class wind_page
{
var $page;
//The current page
var $total;
//Total number of records
var $totalpage;
//Total page tree
var $pagesize;
//Number of items displayed on each page
var $offset;
//Offset
var $result;
//Record collection
var $thispage;
//Total number of records //Total number of records //Total number of records
var $link;
//Connect (record $_get variable)
var $bar_mun;
//Number of pages displayed by bar
var $starttime;
//Start time
var $bar_last;
//The number of continuous pages of the navigation bar
var $bar_mid;
//Navigation bar middle page
var $minpage;
//Navigation bar minimum page
var $maxpage;
//Maximum page of navigation bar
var $key;
//Identify pagination (used to distinguish multiple paginations on one page)
var $style;
//Output style
var $pre_page_char;
//Previous page
var $pre_page_image;
//Previous page graphics
var $pre_page_char_color;
//Font color of previous page
var $next_page_char;
//Next page
var $next_page_image;
//Next page graphics
var $next_page_char_color;
//Next page font color
var $pre_groud_char;
//Turn up the middle page
var $pre_groud_char_color;
//Number font color of the middle page when turning up
var $next_groud_char;
//Turn down the middle page
var $next_groud_char_color;
//Number font color when turning down the middle page
var $first_page_char;
//Home
var $first_page_char_color;
//Home page font color
var $last_page_char;
//Last page
var $last_page_char_color;
//Last page font color
var $html_page_val;
//html current page number value
Function wind_page($sql, $pagesize = 20, $bar_mun = 10, $style = 1,$this_page = 1,$html_page_val=1,$key = "") //Constructor ()
{
$this->starttime = microtime();
$this->pagesize = $pagesize;
//Number of items displayed on each page
$this->key = trim($key);
$this->bar_mun = $bar_mun;
$this->style = $style;
$this->html_page_val = $html_page_val;
//html current page number value
$this->bar_last = $bar_mun-1;
$this->bar_mid = floor($bar_mun/2);
$this->sql = $sql;
$result = mysql tutorial_query($this->sql);
$this->total = mysql_num_rows($result);
//Total number of records
$this->totalpage = ceil($this->total/$this->pagesize);
//Total number of pages
//$this->page = ceil($_get[$this->key."page"]);
$this->page = $this_page;
//现在所在页
if ($this->page == "" || $this->page < 1 || !is_numeric($this->page))$this->page = 1;
$this->page = min($this->page, $this->totalpage);
$this->thispage = $this->pagesize;
if ($this->page * $this->pagesize > $this->total) {
$this->thispage = $this->total-($this->page-1) * $this->pagesize;
};
$this->sql .= " limit ".($this->pagesize * ($this->page-1)).", ".$this->pagesize;
//开始读取的条数
//echo "
";
$this->result = mysql_query($this->sql);
$this->getvar();
$this->pre_page_char = "上一页";
$this->pre_page_image = "";
$this->next_page_char = "下一页";
$this->next_page_image = "";
$this->pre_groud_char = "上一组";
$this->next_groud_char = "下一组";}
function getvar() //取得除page外的其他get变量
{
$this->link = "";
foreach($_get as $key => $vaule) {
if (strtolower($key) !== $this->key."page") $this->link .= "&$key=$vaule";
}
}
function pre_page($color="#909090",$sign=0) //上一页
{
if ($this->page > 1) {
return "page-1).".html" class="ab">pre_page_char_color."">".$this->pre_page_char."";
} else
{
return "".$this->pre_page_char."";
}
}
function next_page($color="#909090",$sign=0) //下一页
{
if ($this->page < $this->totalpage) {
return "page+1).".html" class="ab">".$this->next_page_char."";
} else {
return "".$this->next_page_char."";
}
}
function pre_groud($char = "<<", $color = "#909090") //上一组
{
if ($this->page <= ($this->bar_mid+1)) {
return "".$this->pre_groud_char."";
//return $this->pre_groud_char;
} else {
$pre_gpage = ($this->page-$this->bar_mid < 0)?1:
$this->page-$this->bar_mid;
return "".$this->pre_groud_char."";
}
}
function next_groud($char = ">>", $color = "#909090") //下一组
{
if (($this->totalpage-$this->page) <= ($this->bar_mid-1)) {
return "".$this->next_groud_char."";
} else {
$next_gpage = ($this->page+$this->bar_mid < $this->totalpage)?$this->page+$this->bar_mid:
$this->totalpage;
return "".$this->next_groud_char."";
}
}
function mun($lcolor = "#ff6633", $acolor = "#ff6633", $left = " ", $right = " ") //数字导航栏
{
$link = "";
$this->minpage = ($this->page-$this->bar_mid < 1) ? 1:($this->page-$this->bar_mid);
$this->maxpage = $this->minpage+$this->bar_last;
if ($this->maxpage > $this->totalpage) {
$this->maxpage = $this->totalpage;
$this->minpage = ($this->maxpage-$this->bar_last < 1) ? 1: $this->maxpage-$this->bar_last;
}
for($i = $this->minpage; $i <= $this->maxpage; $i++)
{
/* 循环输出页码 */
$i = sprintf("%02d",$i);
//不足两位的前面补0
$char = $left.$i.$right;
//导航条左右两边加窄
if ($i == $this->page)
{
/* 假如是当前页则不加链接 */
$link.= "".$char."";
}
else
{
//$link .= "key."page=".$i.$this->link."" >".$char."";
$link.= "".$char."";
//关键把$link 加在新资料加入之后
}
}
echo "
";
return $link;
}
function jump_bar($class = "jump_bar") //下拉跳转
{
$link = "";
return $link;
}
function mun_bar() //整条数字导航栏 [<<][<][01][02][03][04][05][06][07][08][09][10][>][>>]
{
//return $this->first_groud().$this->pre_groud().$this->pre_page().$this->mun().$this->next_page().$this->next_groud().$this->last_groud();
return $this->pre_groud()." ".$this->pre_page().$this->mun().$this->next_page()." ".$this->next_groud();
}
function page_button()
{ //整条数字导航栏 [<][01][02][03][04][05][06][07][08][09][10][>]
//return $this->first_groud().$this->pre_groud().$this->pre_page().$this->mun().$this->next_page().$this->next_groud().$this->last_groud();
return $this->pre_page('#909090',1).$this->mun().$this->next_page('#909090',1);
}
function total_bar($coloro = "#000000", $colorn = "red") //统计数字 页次:1/4310 每页:20 共计:4310页 本页:20
{
return "页次:$this->page/$this->totalpage 每页:$this->pagesize 共计:$this->totalpage页 本页:$this->thispage";
}
// 整条导航栏
//页次:1/4310 每页:20 共计:4310页 本页:20 [<<][<][01][02][03][04][05][06][07][08][09][10][>][>>]
function page_bar($coloro = "#000000", $colorn = "red") {
return "".$this->mm_jumpmenu();
".$this->total_bar()."
".$this->mun_bar()."
".$this->jump_bar()."
}
function taketime($color = "#000000") //计算执行时间
{
return "本页执行时间".abs((microtime()-$this->starttime) * 1000)."毫秒";
}
Function style() //Output paging style
{
$style_num = $this->style;
If ($this->totalpage != 0) //If the total number of pages = 0, it means no paging
{
switch($style_num) {
case 1:
return $this->page_bar();
//Page: 1/4310 Each page: 20 Total: 4310 pages This page: 20 [<<][<][01][02][03][04][05][06][07 ][08][09][10][>][>>]
break;
case 2:
echo $this->mun_bar();
//The entire digital navigation bar [<<][<][01][02][03][04][05][06][07][08][09][10][> ][>>]
break;
case 3:
echo $this->page_button();
//The entire digital navigation bar [<][01][02][03][04][05][06][07][08][09][10][>]
break;
}
}
}
Function mm_jumpmenu() //Jump of web page special effects
{
//window.open(selobj.options[selobj.selectedindex].value,targ);
return "
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