PHP中常用的分页类总结_PHP教程

分页是目前在显示大量结果时所采用的最好的方式。有了下面这些代码的帮助，开发人员可以在多个页面中显示大量的数据。在互联网上，分​页是一般用于搜索结果或是浏览全部信息

php基本分页

代码如下

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// database connection info $conn = mysql_connect('localhost','dbusername','dbpass') or trigger_error("SQL", E_USER_ERROR); $db = mysql_select_db('dbname',$conn) or trigger_error("SQL", E_USER_ERROR); // find out how many rows are in the table $sql = "SELECT COUNT(*) FROM numbers"; $result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR); $r = mysql_fetch_row($result); $numrows = $r[0]; // number of rows to show per page $rowsperpage = 10; // find out total pages $totalpages = ceil($numrows / $rowsperpage); // get the current page or set a default if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) { // cast var as int $currentpage = (int) $_GET['currentpage']; } else { // default page num $currentpage = 1; } // end if // if current page is greater than total pages... if ($currentpage > $totalpages) { // set current page to last page $currentpage = $totalpages; } // end if // if current page is less than first page... if ($currentpage // set current page to first page $currentpage = 1; } // end if // the offset of the list, based on current page $offset = ($currentpage - 1) * $rowsperpage; // get the info from the db $sql = "SELECT id, number FROM numbers LIMIT $offset, $rowsperpage"; $result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR); // while there are rows to be fetched... while ($list = mysql_fetch_assoc($result)) { // echo data echo $list['id'] . " : " . $list['number'] . " "; } // end while /****** build the pagination links ******/ // range of num links to show $range = 3; // if not on page 1, don't show back links if ($currentpage > 1) { // show echo " "; // get previous page num $prevpage = $currentpage - 1; // show echo " "; } // end if // loop to show links to range of pages around current page for ($x = ($currentpage - $range); $x // if it's a valid page number... if (($x > 0) && ($x // if we're on current page... if ($x == $currentpage) { // 'highlight' it but don't make a link echo " [$x] "; // if not current page... } else { // make it a link echo " $x "; } // end else } // end if } // end for // if not on last page, show forward and last page links if ($currentpage != $totalpages) { // get next page $nextpage = $currentpage + 1; // echo forward link for next page echo " > "; // echo forward link for lastpage echo " >> "; } // end if /****** end build pagination links ******/ ?>

先看一个常用的php分页类

代码如下

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/*   Place code to connect to your DB here.  */  include('config.php'); // include your code to connect to DB.  $tbl_name="";  //your table name  // How many adjacent pages should be shown on each side?  $adjacents = 3;    /*     First get total number of rows in data table.     If you have a WHERE clause in your query, make sure you mirror it here.  */  $query = "SELECT COUNT(*) as num FROM $tbl_name";  $total_pages = mysql_fetch_array(mysql_query($query));  $total_pages = $total_pages[num];    /* Setup vars for query. */  $targetpage = "filename.php";  //your file name  (the name of this file)  $limit = 2;         //how many items to show per page  $page = $_GET['page'];  if($page)   $start = ($page - 1) * $limit;    //first item to display on this page  else   $start = 0;        //if no page var is given, set start to 0    /* Get data. */  $sql = "SELECT column_name FROM $tbl_name LIMIT $start, $limit";  $result = mysql_query($sql);    /* Setup page vars for display. */  if ($page == 0) $page = 1;     //if no page var is given, default to 1.  $prev = $page - 1;       //previous page is page - 1  $next = $page + 1;       //next page is page + 1  $lastpage = ceil($total_pages/$limit);  //lastpage is = total pages / items per page, rounded up.  $lpm1 = $lastpage - 1;      //last page minus 1    /*   Now we apply our rules and draw the pagination object.   We're actually saving the code to a variable in case we want to draw it more than once.  */  $pagination = "";  if($lastpage > 1)  {    $pagination .= " ";   //previous button   if ($page > 1)    $pagination.= "� previous";   else    $pagination.= "� previous";       //pages    if ($lastpage   {     for ($counter = 1; $counter    {     if ($counter == $page)      $pagination.= "$counter";     else      $pagination.= "$counter";         }   }   elseif($lastpage > 5 + ($adjacents * 2)) //enough pages to hide some   {    //close to beginning; only hide later pages    if($page    {     for ($counter = 1; $counter     {      if ($counter == $page)       $pagination.= "$counter";      else       $pagination.= "$counter";          }     $pagination.= "...";     $pagination.= "$lpm1";     $pagination.= "$lastpage";      }    //in middle; hide some front and some back    elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))    {     $pagination.= "1";     $pagination.= "2";     $pagination.= "...";     for ($counter = $page - $adjacents; $counter     {      if ($counter == $page)       $pagination.= "$counter";      else       $pagination.= "$counter";          }     $pagination.= "...";     $pagination.= "$lpm1";     $pagination.= "$lastpage";      }    //close to end; only hide early pages    else    {     $pagination.= "1";     $pagination.= "2";     $pagination.= "...";     for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter     {      if ($counter == $page)       $pagination.= "$counter";      else       $pagination.= "$counter";          }    }   }      //next button   if ($page    $pagination.= "next �";   else    $pagination.= "next �";   $pagination.= " n";    } ?>    while($row = mysql_fetch_array($result))   {     // Your while loop here     }  ?> =$pagination?>

实例

代码如下

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class PageView{     /**页码**/     public $pageNo = 1;     /**页大小**/     public $pageSize = 20;     /**共多少页**/     public $pageCount = 0;     /**总记录数**/     public $totalNum = 0;     /**偏移量,当前页起始行**/     public $offSet = 0;     /**每页数据**/     public $pageData = array();         /**是否有上一页**/     public $hasPrePage = true;     /**是否有下一页**/     public $hasNextPage = true;         public $pageNoList = array();         public $jsFunction ='jsFunction';     /**      *      * @param unknown_type $count 总行数      * @param unknown_type $size 分页大小      * @param unknown_type $string      */     public function __construct($count=0, $size=20,$pageNo=1,$pageData =array(),$jsFunction='jsFunction'){         $this->totalNum = $count;//总记录数         $this->pageSize = $size;//每页大小         $this->pageNo = $pageNo;         //计算总页数         $this->pageCount = ceil($this->totalNum/$this->pageSize);         $this->pageCount = ($this->pageCountpageCount;         //检查pageNo         $this->pageNo = $this->pageNo == 0 ? 1 : $this->pageNo;         $this->pageNo = $this->pageNo > $this->pageCount? $this->pageCount : $this->pageNo;                 //计算偏移         $this->offset = ( $this->pageNo - 1 ) * $this->pageSize;         //计算是否有上一页下一页         $this->hasPrePage = $this->pageNo == 1 ?false:true;         $this->hasNextPage = $this->pageNo >= $this->pageCount ?false:true;                 $this->pageData = $pageData;         $this->jsFunction = $jsFunction;             }     /**      * 分页算法      * @return      */     private function generatePageList(){         $pageList = array();         if($this->pageCount             for($i=0;$ipageCount;$i++){                 array_push($pageList,$i+1);             }         }else{             if($this->pageNo                 for($i=0;$i                    array_push($pageList,$i+1);                 }                 array_push($pageList,-1);                 array_push($pageList,$this->pageCount);             }else if($this->pageNo > $this->pageCount - 4){                 array_push($pageList,1);                                 array_push($pageList,-1);                 for($i=5;$i>0;$i--){                     array_push($pageList,$this->pageCount - $i+1);                 }             }else if($this->pageNo > 4 && $this->pageNo pageCount - 4){                 array_push($pageList,1);                 array_push($pageList,-1);                                 array_push($pageList,$this->pageNo -2);                 array_push($pageList,$this->pageNo -1);                 array_push($pageList,$this->pageNo);                 array_push($pageList,$this->pageNo + 1);                 array_push($pageList,$this->pageNo + 2);                                 array_push($pageList,-1);                 array_push($pageList,$this->pageCount);                             }         }         return $pageList;     }     /***      * 创建分页控件     * @param     * @return String     */     public function echoPageAsDiv(){         $pageList = $this->generatePageList();                 $pageString =" ";             if(!empty($pageList)){             if($this->pageCount >1){                 if($this->hasPrePage){                     $pageString = $pageString ."jsFunction . "(" . ($this->pageNo-1) . ")">上一页";                 }                 foreach ($pageList as $k=>$p){                     if($this->pageNo == $p){                         $pageString = $pageString ."" . $this->pageNo . "";                         continue;                     }                     if($p == -1){                         $pageString = $pageString ."...";                         continue;                     }                     $pageString = $pageString ."jsFunction . "(" . $p . ")">" . $p . "";                 }                                 if($this->hasNextPage){                     $pageString = $pageString ."jsFunction . "(" . ($this->pageNo+1) . ")">下一页";                 }                             }         }         $pageString = $pageString .(" ");         return $pageString;     } } ?>

css代码

代码如下	复制代码
-->

在php页面中的调用方法

代码如下	复制代码
$pageNo = $_GET['pageNo'];         if(empty($pageNo)){             $pageNo = 1;         }         //分页数据         $pageData = News::getNewsPage($pageNo,$pageSize);        //取得总行数         $count = News::getNewsCount();         //创建分页器         $p = new PageView($count['0']['TOTAL'],$pageSize,$pageNo,$pageData); 　　　　 //生成页码         $pageViewString = $p->echoPageAsDiv();

http://www.bkjia.com/PHPjc/444637.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/444637.htmlTechArticle分页是目前在显示大量结果时所采用的最好的方式。有了下面这些代码的帮助，开发人员可以在多个页面中显示大量的数据。在互联网上，...