Page.class.php
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<?php
/*
* 模板分页类,源于Easp的数据库分页方法，算是Easp分页的的PHP独立版
* 支持动态和静态分页方式
* Easp官网http://easp.lengshi.com/
* 作者：钟晶晶
* 日期：2010-11-3
* 邮箱：zhongjingjing@gmail.com
* 博客：http://blog.zaimer.com
* Page([总记录数=1]，[分页大小=20]，[当前页=1]，[显示页数=6]，[分页参数='page'],[分页链接=当前页面],[是否静态=FALSE])
* 动态：
* 简单用法：
* $page = new Page(50);
* $page->SetPager('zjj','<div class="newpager">共有{recordcount} 个商品 当前第 {pageindex} 页 / 共 {pagecount} 页 分页： {first}{prev} {list} {next}{last} 转到 {jump} 页</div>',array("listlong"=>"6","first"=>"首页","last"=>"尾页","prev"=>"上一页","next"=>"下一页","list"=>"第*页","jump"=>"select"));
* echo $page->show('zjj');
* 全参数用法：
* $page = new Page(50,20,1,6,'page','prrr.php',false);
* $page->SetPager('zjj','<div class="newpager">共有{recordcount} 个商品 当前第 {pageindex} 页 / 共 {pagecount} 页 分页： {first}{prev} {list} {next}{last} 转到 {jump} 页</div>',array("listlong"=>"6","first"=>"首页","last"=>"尾页","prev"=>"上一页","next"=>"下一页","list"=>"第*页","jump"=>"select"));
* echo $page->show('zjj');
* 静态：
* $page = new Page(50,20,1,6,'page','prrr{page}.html',true);
* $page->SetPager('zjj','<div class="newpager">共有{recordcount} 个商品 当前第 {pageindex} 页 / 共 {pagecount} 页 分页： {first}{prev} {list} {next}{last} 转到 {jump} 页</div>',array("listlong"=>"6","first"=>"首页","last"=>"尾页","prev"=>"上一页","next"=>"下一页","list"=>"第*页","jump"=>"select"));
* echo $page->show('zjj');
其他说明：
$page = new Page($Total_Size , $Page_Size $Current_Page , $List_Page, $PageParam , $PageLink ,$Static);
SetPager()方法设置分页导航列表样式语法
$page->SetPager($name, $html, $config);
参数说明：
$name:
String (字符串) 分页导航样式配置名称，默认样式的名称为”default”
$html:
String (字符串)
分页导航样式HTML模板，可以用以下代码嵌入HTML代码中代表相应的项目(均为可选)：
“{recordcount}” - 总记录数
“{pagecount}” - 总页数
“{pageindex}” - 当前页码
“{pagesize}” - 每页记录数
“{list}” - 分页链接列表
“{liststart}” - 分页链接列表页首导航
“{listend}” - 分页链接列表页尾导航
“{first}” - 第一页的链接
“{last}” - 最后页的链接
“{prev}” - 上一页的链接
“{next}” - 下一页的链接
“{jump}” - 页面跳转文本框或下拉菜单
$config:
“” (空字符串) 或 Array (数组)
分页导航样式配置选项。如果留空将采用默认配置，否则使用数组配置，可配置项目包括：
“listlong” - 分页链接列表页码数量，默认为9
“listsidelong” - 分页链接列表首尾导航页码数量，默认为2，html 参数中有”{liststart}”或”{listend}”时才有效
“list” - 分页链接的HTML代码，用*代表页码，默认为仅显示页码
“currentclass” - 当前页码的CSS样式名称，默认为”current”
“link” - 自定义页码链接，用*代表页码，用于静态页面分页或Ajax分页
“first” - 第一页链接的HTML代码，默认为 ”«”，即显示为 «
“prev” - 上一页链接的HTML代码，默认为”‹”,即显示为 ‹
“next” - 下一页链接的HTML代码，默认为”›”,即显示为 ›
“last” - 最后页链接的HTML代码，默认为”»”,即显示为 »
“more” - 被省略的页码链接显示为，默认为”…”
“disabledclass” - 当处于首尾页时不可用链接的CSS样式名称，默认为”disabled”
“jump” - 页面跳转方式，默认为”input”文本框，可设置为”select”下拉菜单
“jumpplus” - 页面跳转文本框或下拉菜单的附加内部代码
“jumpaction” - 跳转时要执行的javascript代码，用*代表页码，可用于Ajax分页
“jumplong” - 当跳转方式为下拉菜单时最多同时显示的页码数量，0为全部显示，默认为50
*/
class Page {
private $Page_size; //每页显示的条目数
private $Total_Size; //总条目数
private $Current_page; //当前被选中的页
private $List_Page; //每次显示的页数 默认列表每页显示行数
private $Total_Pages = 20; //总页数
private $Page_tpl = array(); // 分页模板
private $PageParam;
private $PageLink;
private $Static;
private $pList;
private $pListEnd;
private $pListStart;
private $pFirst;
private $pPrev;
private $pLast;
private $pNext;
// 起始行数
public $firstRow;
public $listRows;
private $linkwraper="";
private $linkwraper_pre="";
private $linkwraper_after="";
private $searching=false;
//Page([总记录数=1]， [分页大小=20]， [当前页=1]， [显示页数=6]， [分页参数='page'], [分页链接=当前页面],[是否静态=FALSE])
function __construct($Total_Size = 1, $Page_Size = 20, $Current_Page = 1, $List_Page = 6, $PageParam = 'p', $PageLink = '', $Static = FALSE) {
$this->Page_size = intval($Page_Size);
$this->Total_Size = intval($Total_Size);
if (!$Current_Page) {
$this->Current_page = 1;
} else {
$this->Current_page = (int)$Current_Page<1?1:(int)$Current_Page;
}
//总分页数
$this->Total_Pages = ceil($Total_Size / $Page_Size);
//一次显示多少个链接 ，该参数会被SetPager里传入的配置覆盖。
$this->List_Page = (int)$List_Page;
//接收分页参数的标识符
$this->PageParam = $PageParam;
//当前页面地址，当需要生成静态地址，此参数需要给，分页号用{page}
$this->PageLink = (empty($PageLink) ? $_SERVER ["PHP_SELF"] : $PageLink);
//是否开启静态
$this->Static = $Static;
$this->Page_tpl ['default'] = array('Tpl' => '<div class="pager">{first}{prev}{liststart}{list}{listend}{next}{last} 跳转到{jump}页</div>', 'Config' => array());
$this->GetCurrentPage();
$this->listRows = $Page_Size;
$this->firstRow = ($this->Current_page - 1) * $this->listRows;
if($this->firstRow < 0){
$this->firstRow = 0;
}
}
public function __set($Param, $value) {
$this->$Param = $value;
}
public function __get($Param) {
return $this->$Param;
}
public function getTotalPages(){
return $this->Total_Pages;
}
public function setLinkWraper($wraper){
if(empty($wraper)){
}else{
$this->linkwraper=$wraper;
$this->linkwraper_after="</$wraper>";
$this->linkwraper_pre="<$wraper>";
}
}
private function UrlParameters($url = array()) {
unset($url[C('VAR_MODULE')]);
unset($url[C('VAR_CONTROLLER')]);
unset($url[C('VAR_ACTION')]);
foreach ($url as $key => $val) {
if ($key != $this->PageParam && $key != "_URL_")
$arg [$key] = $val;
}
$arg[$this->PageParam] = '*';
if ($this->Static) {
//当启用静态地址，$this->PageLink传入的是array，并且包含两个 index,list
/*
* array(
* "index"=>"http://www.a.com/192.html",//这种是表示当前是首页，无需加分页1
* "list"=>"http://www.a.com/192-{page}.html",//这种表示分页非首页时启用
* )
*/
if (is_array($this->PageLink)) {
return str_replace('{page}', '*', $this->PageLink['list']);
} else {
return str_replace('{page}', '*', $this->PageLink);
}
} else {
if($this->searching){
$url=leuu(MODULE_NAME . "/" . CONTROLLER_NAME . "/" . ACTION_NAME)."?".http_build_query ($arg);
}else{
$url=leuu(MODULE_NAME . "/" . CONTROLLER_NAME . "/" . ACTION_NAME,$arg);
}
return str_replace("%2A", "*", $url);
}
}
public function SetPager($Tpl_Name = 'default', $Tpl = '', $Config = array()) {
if (empty($Tpl))
$Tpl = $this->Page_tpl ['default'] ['Tpl'];
if (empty($Config))
$Config = $this->Page_tpl ['default'] ['Config'];
$this->Page_tpl [$Tpl_Name] = array('Tpl' => $Tpl, 'Config' => $Config);
}
public function show($Tpl_Name = 'default') {
//当分页数只有1的时候，不显示
if ($this->Total_Pages <= 1) {
return;
}
return $this->Pager($this->Page_tpl [$Tpl_Name]);
}
public function GetCurrentPage() {
$p=isset($_GET [$this->PageParam])?intval($_GET [$this->PageParam]):1;
session('thispage',$_GET [$this->PageParam]);
$p=$p < 1 ? 1 : $p;
$total_pages=intval($this->Total_Pages);
$this->Current_page = ($p <=$total_pages? $p : $total_pages);
}
public function Pager($Page_tpl = '') {
if (empty($Page_tpl))
$Page_tpl = $this->Page_tpl ['default'];
$_GET=array_merge($_GET,$_POST);
$cfg = array('recordcount' => intval($this->Total_Size), 'pageindex' => intval($this->Current_page), 'pagecount' => intval($this->Total_Pages), 'pagesize' => intval($this->Page_size), 'listlong' => intval($this->List_Page), 'listsidelong' => 2, 'list' => '*', 'currentclass' => 'current', 'link' => $this->UrlParameters($_GET), 'first' => '«', 'prev' => '‹', 'next' => '›', 'last' => '»', 'more' => $this->linkwraper_pre.'<span>...</span>'.$this->linkwraper_after, 'disabledclass' => 'disabled', 'jump' => 'input', 'jumpplus' => '', 'jumpaction' => '', 'jumplong' => 50);
if (!empty($Page_tpl ['Config'])) {
foreach ($Page_tpl ['Config'] as $key => $val) {
if (array_key_exists($key, $cfg))
$cfg [$key] = $val;
}
}
//判断listlong是否为偶数
if( (int)$cfg ['listlong']%2 != 0 ){
$cfg ['listlong'] = $cfg ['listlong']+1;
}
$tmpStr = $Page_tpl ['Tpl'];
$pStart = $cfg ['pageindex'] - (($cfg ['listlong'] / 2) + ($cfg ['listlong'] % 2)) + 1;
$pEnd = $cfg ['pageindex'] + $cfg ['listlong'] / 2;
if ($pStart < 1) {
$pStart = 1;
$pEnd = $cfg ['listlong'];
}
if ($pEnd > $cfg ['pagecount']) {
$pStart = $cfg ['pagecount'] - $cfg ['listlong'] + 1;
$pEnd = $cfg ['pagecount'];
}
if ($pStart < 1)
$pStart = 1;
for ($i = $pStart; $i <= $pEnd; $i++) {
if ($i == $cfg ['pageindex']) {
$wraper= empty($this->linkwraper)?'':'<'.$this->linkwraper.' class="active">';
$this->pList .=$wraper.'<a class="item cur">' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
//此处是为了照顾静态地址生成时，第一页不显示当前分页1，启用该方法，静态地址需要$this->PageLink传入的是array，并且包含两个 index,list。index是首页
//事例用法 new Page(50,5,2,6,"page",array("index"=>"http://www.a.com/192.html","list"=>"http://www.a.com/192-{page}.html",),true);
if ($this->Static && $i == 1) {
$this->pList .= $this->linkwraper_pre.'<a class="item" href="' . $this->PageLink['index'] . '"> ' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
$this->pList .= $this->linkwraper_pre.'<a class="item" href="' . str_replace('*', $i, $cfg ['link']) . '"> ' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
}
}
}
if ($cfg ['listsidelong'] > 0) {
if ($cfg ['listsidelong'] < $pStart) {
for ($i = 1; $i <= $cfg ['listsidelong']; $i++) {
if ($this->Static && $i == 1) {
$this->pListStart .= $this->linkwraper_pre.'<a class="item" href="' . $this->PageLink['index'] . '">' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
$this->pListStart .= $this->linkwraper_pre.'<a class="item" href="' . str_replace('*', $i, $cfg ['link']) . '">' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
}
}
$this->pListStart .= ($cfg ['listsidelong'] + 1) == $pStart ? '' : $cfg ['more'] . ' ';
} else {
if ($cfg ['listsidelong'] >= $pStart && $pStart > 1) {
for ($i = 1; $i <= ($pStart - 1); $i++) {
if ($this->Static && $i == 1) {
$this->pListStart .= $this->linkwraper_pre.'<a class="item" href="' . $this->PageLink['index'] . '"> ' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
$this->pListStart .= $this->linkwraper_pre.'<a class="item" href="' . str_replace('*', $i, $cfg ['link']) . '"> ' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
}
}
}
}
if (($cfg ['pagecount'] - $cfg ['listsidelong']) > $pEnd) {
$this->pListEnd = ' ' . $cfg ['more'] . $this->pListEnd;
for ($i = (($cfg ['pagecount'] - $cfg ['listsidelong']) + 1); $i <= $cfg ['pagecount']; $i++) {
if ($this->Static && $i == 1) {
$this->pListEnd .= $this->linkwraper_pre.'<a class="item" href="' . $this->PageLink['index'] . '">' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
$this->pListEnd .= $this->linkwraper_pre.'<a class="item" href="' . str_replace('*', $i, $cfg ['link']) . '"> ' . str_replace('*', $i, $cfg ['list']) . ' </a> '.$this->linkwraper_after;
}
}
} else {
if (($cfg ['pagecount'] - $cfg ['listsidelong']) <= $pEnd && $pEnd < $cfg ['pagecount']) {
for ($i = ($pEnd + 1); $i <= $cfg ['pagecount']; $i++) {
if ($this->Static && $i == 1) {
$this->pListEnd .= '<a class="item" href="' . $this->PageLink['index'] . '">' . str_replace('*', $i, $cfg ['list']) . '</a> '.$this->linkwraper_after;
} else {
$this->pListEnd .= $this->linkwraper_pre.'<a class="item" href="' . str_replace('*', $i, $cfg ['link']) . '"> ' . str_replace('*', $i, $cfg ['list']) . ' </a> '.$this->linkwraper_after;
}
}
}
}
}
//上一页 首页
if ($cfg ['pageindex'] > 1) {
if ($this->Static) {
$wraper= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-index">';
$this->pFirst = $wraper.'<a class="item" href="' . $this->PageLink['index'] . '">' . $cfg ['first'] . '</a> '.$this->linkwraper_after; //首页
} else {
$wraper= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-index">';
$this->pFirst = $wraper.'<a class="item" href="' . str_replace('*', 1, $cfg ['link']) . '">' . $cfg ['first'] . '</a> '.$this->linkwraper_after; //首页
}
if ($this->Static && ($cfg ['pageindex'] - 1) == 1) {
$wraper= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-prev">';
$this->pPrev = $wraper.'<a class="prev" href="' . $this->PageLink['index'] . '">' . $cfg ['prev'] . '</a> '.$this->linkwraper_after; //上一页
} else {
$wraper= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-prev">';
$this->pPrev = $wraper.'<a class="prev" href="' . str_replace('*', $cfg ['pageindex'] - 1, $cfg ['link']) . '">' . $cfg ['prev'] . '</a> '.$this->linkwraper_after;
}
}
//下一页，尾页
if ($cfg ['pageindex'] < $cfg ['pagecount']) {
$wraper_next= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-next">';
$wraper_end= empty($this->linkwraper)?$this->linkwraper_pre:'<'.$this->linkwraper.' class="p-end">';
$this->pLast = $wraper_next.'<a class="next" href="' . str_replace('*', $cfg ['pagecount'], $cfg ['link']) . '">' . $cfg ['last'] . '</a> '.$this->linkwraper_after;
$this->pNext = $wraper_end.'<a class="next" href="' . str_replace('*', $cfg ['pageindex'] + 1, $cfg ['link']) . '">' . $cfg ['next'] . '</a> '.$this->linkwraper_after;
}
//快捷跳转方式
switch (strtolower($cfg ['jump'])) {
case 'input' :
$pJumpValue = 'this.value';
$pJump = '<input type="text" size="3" title="请输入要跳转到的页数并回车"' . (($cfg ['jumpplus'] == '') ? '' : ' ' . $cfg ['jumpplus']);
$pJump .= ' onkeydown="javascript:if(event.charCode==13||event.keyCode==13){if(!isNaN(' . $pJumpValue . ')){';
$pJump .= ($cfg ['jumpaction'] == '' ? ((strtolower(substr($cfg ['link'], 0, 11)) == 'javascript:') ? str_replace('*', $pJumpValue, substr($cfg ['link'], 12)) : " document.location.href='" . str_replace('*', '\'+' . $pJumpValue . '+\'', $cfg ['link']) . '\';') : str_replace("*", $pJumpValue, $cfg ['jumpaction']));
$pJump .= '}return false;}" />';
break;
case 'select' :
$pJumpValue = "this.options[this.selectedIndex].value";
$pJump = '<select ' . ($cfg ['jumpplus'] == '' ? ' ' . $cfg ['jumpplus'] . ' onchange="javascript:' : $cfg ['jumpplus']);
$pJump .= ($cfg ['jumpaction'] == '' ? ((strtolower(substr($cfg ['link'], 0, 11)) == 'javascript:') ? str_replace('*', $pJumpValue, substr($cfg ['link'], 12)) : " document.location.href='" . str_replace('*', '\'+' . $pJumpValue . '+\'', $cfg ['link']) . '\';') : str_replace("*", $pJumpValue, $cfg ['jumpaction']));
$pJump .= '" title="请选择要跳转到的页数"> ';
if ($cfg ['jumplong'] == 0) {
for ($i = 0; $i <= $cfg ['pagecount']; $i++) {
$pJump .= '<option value="' . $i . '"' . (($i == $cfg ['pageindex']) ? ' selected="selected"' : '') . ' >' . $i . '</option> ';
}
} else {
$pJumpLong = intval($cfg ['jumplong'] / 2);
$pJumpStart = ((($cfg ['pageindex'] - $pJumpLong) < 1) ? 1 : ($cfg ['pageindex'] - $pJumpLong));
$pJumpStart = ((($cfg ['pagecount'] - $cfg ['pageindex']) < $pJumpLong) ? ($pJumpStart - ($pJumpLong - ($cfg ['pagecount'] - $cfg ['pageindex'])) + 1) : $pJumpStart);
$pJumpStart = (($pJumpStart < 1) ? 1 : $pJumpStart);
$j = 1;
for ($i = $pJumpStart; $i <= $cfg ['pageindex']; $i++, $j++) {
$pJump .= '<option value="' . $i . '"' . (($i == $cfg ['pageindex']) ? ' selected="selected"' : '') . '>' . $i . '</option> ';
}
$pJumpLong = $cfg ['pagecount'] - $cfg ['pageindex'] < $pJumpLong ? $pJumpLong : $pJumpLong + ($pJumpLong - $j) + 1;
$pJumpEnd = $cfg ['pageindex'] + $pJumpLong > $cfg ['pagecount'] ? $cfg ['pagecount'] : $cfg ['pageindex'] + $pJumpLong;
for ($i = $cfg ['pageindex'] + 1; $i <= $pJumpEnd; $i++) {
$pJump .= '<option value="' . $i . '">' . $i . '</option> ';
}
}
$pJump .= '</select>';
break;
}
$patterns = array('/{recordcount}/', '/{pagecount}/', '/{pageindex}/', '/{pagesize}/', '/{list}/', '/{liststart}/', '/{listend}/', '/{first}/', '/{prev}/', '/{next}/', '/{last}/', '/{jump}/');
$replace = array($cfg ['recordcount'], $cfg ['pagecount'], $cfg ['pageindex'], $cfg ['pagesize'], $this->pList, $this->pListStart, $this->pListEnd, $this->pFirst, $this->pPrev, $this->pNext, $this->pLast, $pJump);
$tmpStr = chr(13) . chr(10) . preg_replace($patterns, $replace, $tmpStr) . chr(13) . chr(10);
unset($cfg);
return $tmpStr;
}
}