一个实例php mysql模板分页类

时间：2015-01-23 来源：西部数据作者：西部数据

<?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->getpager('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->getpager('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->getpager('zjj');

*/

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 $sub_pages; //每次显示的页数

private $total_pages; //总页数

private $page_tpl = array (); // 分页模板

private $pageparam;

private $pagelink;

private $static;



function __construct($total_size = 1, $page_size = 20, $current_page = 1, $sub_pages = 6, $pageparam = 'page', $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 = intval ( $current_page );

  }

  $this->total_pages = ceil ( $total_size / $page_size );

  $this->sub_pages = intval ( $sub_pages );

  $this->pageparam = $pageparam;

  $this->pagelink = (emptyempty ( $pagelink ) ? $_server ["php_self"] : $pagelink);

  $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 () );



}

public function __set($param, $value) {

  $this->$param = $value;

}

public function __get($param) {

  return $this->$param;

}

/*

  __destruct析构函数，当类不在使用的时候调用，该函数用来释放资源。

*/

function __destruct() {

  unset ( $page_size ); //每页显示的条目数

  unset ( $total_size ); //总条目数

  unset ( $current_page ); //当前被选中的页

  unset ( $sub_pages ); //每次显示的页数

  unset ( $total_pages ); //总页数

  unset ( $page_tpl ); // 分页模板

  unset ( $pageparam ); //分页参数，默认page

  unset ( $pagelink );

  unset ( $static );

}

private function urlparameters($url = array()) {

  foreach ( $url as $key => $val ) {

   if ($key != $this->pageparam)

    $arg [] = $key . '=' . $val;

  }

  $arg [] = $this->pageparam . '=*';

  if ($this->static)

   return str_replace ( '{page}', '*', $this->pagelink );

  else

   return $this->pagelink . '?' . implode ( '&', $arg );

}

public function setpager($tpl_name = 'default', $tpl = '', $config = array()) {

  if (emptyempty ( $tpl ))

   $tpl = $this->page_tpl ['default'] ['tpl'];

  if (emptyempty ( $config ))

   $config = $this->page_tpl ['default'] ['config'];

  $this->page_tpl [$tpl_name] = array ('tpl' => $tpl, 'config' => $config );

}

public function getpager($tpl_name = 'default') {

  $this->getcurrentpage ();

  return $this->pager ( $this->page_tpl [$tpl_name] );

}

public function getcurrentpage() {

  $this->current_page = ($_get [$this->pageparam] <= intval ( $this->total_pages ) ? ($_get [$this->pageparam] < 1 ? 1 : $_get [$this->pageparam]) : intval ( $this->total_pages ));

}

public function pager($page_tpl = '') {

  if (emptyempty ( $page_tpl ))

   $page_tpl = $this->page_tpl ['default'];

  $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->sub_pages ), 'listsidelong' => 2, 'list' => '*', 'currentclass' => 'current', 'link' => $this->urlparameters ( $_get ), 'first' => '«', 'prev' => '‹', 'next' => '›', 'last' => '»', 'more' => '...', 'disabledclass' => 'disabled', 'jump' => 'input', 'jumpplus' => '', 'jumpaction' => '', 'jumplong' => 50 );

  if (! emptyempty ( $page_tpl ['config'] )) {

   foreach ( $page_tpl ['config'] as $key => $val ) {

    if (array_key_exists ( $key, $cfg ))

     $cfg [$key] = $val;

   }

  }

  $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'])

    $plist .= '<span class="' . $cfg ['currentclass'] . '" >' . str_replace ( '*', $i, $cfg ['list'] ) . '</span> ';

   else

    $plist .= ' <a href="' . str_replace ( '*', $i, $cfg ['link'] ) . '"> ' . str_replace ( '*', $i, $cfg ['list'] ) . '</a> ';

  }

  if ($cfg ['listsidelong'] > 0) {

   if ($cfg ['listsidelong'] < $pstart) {

    for($i = 1; $i <= $cfg ['listsidelong']; $i ++) {

     $pliststart .= '<a href="' . str_replace ( '*', $i, $cfg ['link'] ) . '">' . str_replace ( '*', $i, $cfg ['list'] ) . '</a> ';

    }

    $pliststart .= ($cfg ['listsidelong'] + 1) == $pstart ? '' : $cfg ['more'] . ' ';

   } else {

    if ($cfg ['listsidelong'] >= $pstart && $pstart > 1) {

     for($i = 1; $i <= ($pstart - 1); $i ++) {

      $pliststart .= '<a href="' . str_replace ( '*', $i, $cfg ['link'] ) . '">' . str_replace ( '*', $i, $cfg ['list'] ) . '</a> ';

     }

    }

   }

   if (($cfg ['pagecount'] - $cfg ['listsidelong']) > $pend) {

    $plistend = ' ' . $cfg ['more'] . $plistend;

    for($i = (($cfg ['pagecount'] - $cfg ['listsidelong']) + 1); $i <= $cfg ['pagecount']; $i ++) {

     $plistend .= ' <a href="' . str_replace ( '*', $i, $cfg ['link'] ) . '"> ' . str_replace ( '*', $i, $cfg ['list'] ) . ' </a> ';

    }

   } else {

    if (($cfg ['pagecount'] - $cfg ['listsidelong']) <= $pend && $pend < $cfg ['pagecount']) {

     for($i = ($pend + 1); $i <= $cfg ['pagecount']; $i ++) {

      $plistend .= ' <a href="' . str_replace ( '*', $i, $cfg ['link'] ) . '"> ' . str_replace ( '*', $i, $cfg ['list'] ) . ' </a> ';

     }

    }

   }

  }

  if ($cfg ['pageindex'] > 1) {

   $pfirst = ' <a href="' . str_replace ( '*', '1', $cfg ['link'] ) . '">' . $cfg ['first'] . '</a> ';

   $pprev = ' <a href="' . str_replace ( '*', $cfg ['pageindex'] - 1, $cfg ['link'] ) . '">' . $cfg ['prev'] . '</a> ';

  } else {

   $pfirst = ' <span class="' . $cfg ['disabledclass'] . '">' . $cfg ['first'] . '</span> ';

   $pprev = ' <span class="' . $cfg ['disabledclass'] . '">' . $cfg ['prev'] . '</span> ';

  }

  if ($cfg ['pageindex'] < $cfg ['pagecount']) {

   $plast = ' <a href="' . str_replace ( '*', $cfg ['pagecount'], $cfg ['link'] ) . '">' . $cfg ['last'] . '</a> ';

   $pnext = ' <a href="' . str_replace ( '*', $cfg ['pageindex'] + 1, $cfg ['link'] ) . '">' . $cfg ['next'] . '</a> ';

  } else {

   $plast = ' <span class="' . $cfg ['disabledclass'] . '">' . $cfg ['last'] . '</span> ';

   $pnext = ' <span class="' . $cfg ['disabledclass'] . '">' . $cfg ['next'] . '</span> ';

  }

  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=":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'], $plist, $pliststart, $plistend, $pfirst, $pprev, $pnext, $plast, $pjump );

  $tmpstr = chr ( 13 ) . chr ( 10 ) . preg_replace ( $patterns, $replace, $tmpstr ) . chr ( 13 ) . chr ( 10 );

  unset ( $cfg );

  return $tmpstr;

}

}

?>