php分頁程式paginator程式碼

代碼如下

複製代碼

<?php   class paginator {       function __construct () {       }       static function render($page_type, array $args = array()) {         $html = '';         switch ($page_type)         {             case '1':                 $html =  page_1($channel_code, $page_num, $cur_page, $per_group, $base_url, $n, $v);                 break;             case '2':                 $html =  fpage($row_num, $pagesize, $page, $url);                 break;             case '3':                 break;               default:                 $html = page($num, $perpage, $curpage, $mpurl, $hiddenFrom='');         }           return $html;     }           //函數1:根據總頁數,當前頁,和頁分組及url產生分頁導航     function page_1($channel_code, $page_num, $cur_page, $per_group, $base_url, $n, $v) {         // 分頁函數參數列表(有多少頁,當前頁,每頁多少個 ,連結地址)         $base_url .= strpos($base_url, '?') ? '&' : '?';    //如果有?，則添加&,否則加？           $page_val = "";           if ($page_num < 1) {             return $page_val; //如果小於1,返回空         } elseif ($page_num == 1) {             return $page_val = 1;   //如果等於1,返回1         }           //分組           $group_ok = !(($page_num-1) % ($per_group-1));  //沒有餘數         // 計算一共有多少組         if($group_ok) {             $group_num = ($page_num-1)/($per_group-1);         }else {             $group_num = ceil(($page_num-1) / ($per_group-1));         } //判斷當前頁是否為一組的最後一個             //組數         $is_last_page = !(($cur_page-1) % ($per_group-1)); //計算當前在的組數         if ($is_last_page) {             $cur_group = ($cur_page-1) / ($per_group-1) + 1;         } else {             $cur_group = ceil(($cur_page-1) / ($per_group-1));         }           // 計算顯示的起始頁 ，這個關鍵         $from = ($cur_group - 1) * ($per_group-1) + 1;         $from = $cur_group <= 1 ? 1 :$from;           $to = $from + $per_group;         $to = $to > $page_num ? $page_num + 1 : $to;           for($a = $from; $a < $to; $a++) {             if ($a != $cur_page) {                   //不是當前頁                 $page_val .= '<li><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $a . '">' . $a . '</a></li>';             } else {                 //當前頁                 $page_val .='<li class="current">'. $a .'</li>';             }         }           //上一頁下一頁首頁尾頁         $next = $cur_page + 1;    //當前頁+1         $prev = $cur_page-1;   //當前頁-1           if ($cur_page != $page_num) {             //當前頁不是最後一頁             $page_val .= '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $next . '">' . '下一頁' . '</a></span>';             $page_val .= '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $page_num . '">' . '>>' . '</a></span>'; //尾頁           }         if ($cur_page != 1){               //不是第一頁,加上前面的內容             $page_val = '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $prev . '">' . '上一頁' . '</a></span>' . $page_val;             $page_val = '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=1">' . '<<' . '</a></span>' . $page_val; //首頁           }         $page_val = '<ul class="page_nav">'.$page_val.'</ul>';             return $page_val;     }             // 函數2：根據記錄數，頁列清數，當前頁，url年成分頁     function fpage($row_num, $pagesize, $page, $url) {         //$page,當前頁;$row_num記錄總數;$pagesize:每頁記錄數;$url記錄頁;         //如果,如果有作數,則取加1         $page_count = $row_num % $pagesize?intval($row_num / $pagesize) + 1:intval($row_num / $pagesize);           if ($page_count == 1) {             $page_string = "第一頁|上一頁|下一頁|尾頁";         } else {             //如果不止一頁             if ($page == 1) {                 //第一頁顯示                 $page_string = " <a href=" . $url . "?page=1>第一頁 </a>|上一頁| <a href=" . $url . "?page=" . ($page + 1) . ">下一頁 </a>| <a href=" . $url . "?page=" . $page_count . ">尾頁 </a>";             }             if (($page > 1) and ($page < $page_count)) {                 $page_string = " <a href=" . $url . "?page=1>第一頁 </a>| <a href=" . $url . "?page=" . ($page-1) . ">上一頁 </a>| <a href=" . $url . "?page=" .                 ($page + 1) . ">下一頁 </a>| <a href=" . $url . "?page=" . $page_count . ">尾頁 </a>";             }             if ($page == $page_count) {                 $page_string = " <a href=" . $url . "?page=1>第一頁 </a>| <a href=" . $url . "?page=" . ($page-1) . ">上一頁 </a>|下一頁| <a href=" . $url . "?page=" . $page_count . ">尾頁 </a>";             }         }         $page_str = $page_string . ("," . $page . "/" . $page_count . "頁");         echo " <br> <p align=center>" . $page_str . " </p>";     }         /**  * 分頁函數  *  * @param int $num:記錄總數  * @param int $perpage:每頁記錄  * @param int $curpage:當前頁  * @param string $mpurl:路徑url  * @param unknown_type $hiddenFrom  * @return string  */     function page($num, $perpage, $curpage, $mpurl,$hiddenFrom='') {         $multipage = '';         //恢複         $mpurl .= strpos($mpurl, '?') ? '&' : '?';           if($num > $perpage) {             $page = 10;             $offset = 2;               $pages = @ceil($num / $perpage);  //總頁數               if($page > $pages) {                 $from = 1;                 $to = $pages;             } else {                 //如果總頁數>10                 $from = $curpage - $offset;   //當前頁-2                 $to = $from + $page - 1;    //當前頁+10-3                   if($from < 1) {                       $to = $curpage + 1 - $from;                     $from = 1;                     if($to - $from < $page) {                         $to = $page;                     }                 } elseif($to > $pages) {                     $from = $pages - $page + 1;                     $to = $pages;                 }             }               if ($hiddenFrom) {                 $multipage = ($curpage - $offset > 1 && $pages > $page ? '<a href="#" '.js_page($hiddenFrom,1).'>首頁</a> ' : '').                 ($curpage > 1 ? ' <a href="#" '.js_page($hiddenFrom,$curpage - 1).'>‹‹上一頁</a> ' : '');                 for($i = $from; $i <= $to; $i++) {                     $multipage .= $i == $curpage ? '<span>'.$i.'</span> ' :                     '<a href="#" '.js_page($hiddenFrom,$i).'>'.$i.'</a> ';                 }                   $multipage .= ($curpage < $pages ? '<a href="#" '.js_page($hiddenFrom,$curpage + 1).'>下一頁››</a>' : '').                 ($to < $pages ? '<a href="#" '.js_page($hiddenFrom,$pages).'> 末頁</a>' : '');                 $multipage = $multipage ? '<div class="list-page">'.$multipage.'</div>' : '';             } else {                   $multipage = ($curpage - $offset > 1 && $pages > $page ? '<a href="'.$mpurl.'page=1">首頁</a> ' : '').                 ($curpage > 1 ? ' <a href="'.$mpurl.'page='.($curpage - 1).'">‹‹上一頁</a> ' : '');                   for($i = $from; $i <= $to; $i++) {                     $multipage .= $i == $curpage ? '<span>'.$i.'</span> ' :                     '<a href="'.$mpurl.'page='.$i.'">'.$i.'</a> ';                 }                   $multipage .= ($curpage < $pages ? '<a href="'.$mpurl.'page='.($curpage + 1).'">下一頁››</a>' : '').                 ($to < $pages ? '<a href="'.$mpurl.'page='.$pages.'"> 末頁</a>' : '');                 $multipage = $multipage ? '<div class="list-page">'.$multipage.'</div>' : '';             }         }         return $multipage;     }     //暫不用     function page_get_start($page, $ppp, $totalnum) {         $totalpage = ceil($totalnum / $ppp);         $page =  max(1, min($totalpage, intval($page)));         return ($page - 1) * $ppp;     }     //暫不用     function js_page($hiddenFrom,$page)     {         if ($hiddenFrom) {             return ' onclick=javascript:$("#page").val("'.$page.'");$("#'.$hiddenFrom.'").submit(); ';         }     } }       ?>