一个很好用的PHP分页类
jopen
11年前
class Page { // 分页栏每页显示的页数 public $rollPage = 6; // 页数跳转时要带的参数 public $parameter ; // 默认列表每页显示行数 public $listRows = 20; // 起始行数 public $firstRow ; // 分页总页面数 protected $totalPages ; // 总行数 protected $totalRows ; // 当前页数 protected $nowPage ; // 分页的栏的总页数 protected $coolPages ; // 分页显示定制 protected $config = array( 'redirect'=>false, 'header'=>'条记录', 'prev'=>'上一页', 'next'=>'下一页', 'first'=>'1', 'last'=>'最后一页', 'theme'=>' <div class="part1">%upPage% %first% %prePage% %linkPage% %nextPage% %downPage%</div> <div class="part2">共 %totalPage% 页'); // 默认分页变量名 protected $varPage; /** +---------------------------------------------------------- * 架构函数 +---------------------------------------------------------- * @access public +---------------------------------------------------------- * @param array $totalRows 总的记录数 * @param array $listRows 每页显示记录数 * @param array $parameter 分页跳转的参数 +---------------------------------------------------------- */ public function __construct($totalRows,$listRows='',$parameter='') { $this->totalRows = $totalRows; $this->parameter = $parameter; $this->varPage = C('VAR_PAGE') ? C('VAR_PAGE') : 'p' ; if(!empty($listRows)) { $this->listRows = intval($listRows); } $this->totalPages = ceil($this->totalRows/$this->listRows); //总页数 $this->coolPages = ceil($this->totalPages/$this->rollPage); //$_GET验证 $this->nowPage = intval($_GET[$this->varPage]); $this->nowPage = $this->nowPage > 0 ? $this->nowPage : 1; if(!empty($this->totalPages) && $this->nowPage>$this->totalPages) { $this->nowPage = $this->totalPages; } $this->firstRow = $this->listRows*($this->nowPage-1); } public function setConfig($name,$value) { if(isset($this->config[$name])) { $this->config[$name] = $value; } } /** +---------------------------------------------------------- * 分页显示输出 +---------------------------------------------------------- * @access public +---------------------------------------------------------- */ public function show() { if(0 == $this->totalRows) return ''; //处理参数 $p = $this->varPage; $url = $_SERVER['REQUEST_URI'].(strpos($_SERVER['REQUEST_URI'],'?')?'':"?").$this->parameter; $parse = parse_url($url); if(isset($parse['query'])) { parse_str($parse['query'],$params); unset($params[$p]); $url = $parse['path'].'?'.http_build_query($params); } /* 分页逻辑 */ //当总数小于显示的页码数 if ($this->totalPages <= $this->rollPage) { $start = 1; $end = $this->totalPages; } else{ // if ($this->nowPage <= $this->rollPage - 1) { $start = 1; $end = $this->rollPage; $islast = true; } else if ($this->nowPage > $this->totalPages - $this->rollPage + 1) { $start = $this->totalPages - ($this->rollPage - 1); $end = $this->totalPages; $isfirst = true; } else{ //浮动数 $size = floor($this->rollPage / 2); $start = $this->nowPage - $size; $end = $this->nowPage + $size; $isfirst = true; $islast = true; } } //上下翻页字符串 $upRow = $this->nowPage - 1; $downRow = $this->nowPage + 1; /* 拼装HTML */ //< 1... ...last > if ($isfirst){ $theFirst = "<a class='firstPage' href='".$url."&".$p."=1' >".$this->config['first']."</a>"; } if ($islast){ $theEnd = "<a class='lastPage' href='".$url."&".$p."=$this->totalPages' >".$this->config['last']."</a>"; } if ($upRow > 0){ $upPage = "<a class='upPage' href='".$url."&".$p."=$upRow'>".$this->config['prev']."</a>"; } if ($downRow <= $this->totalPages){ $downPage = "<a class='downPage' href='".$url."&".$p."=$downRow'>".$this->config['next']."</a>"; } if($start==3){ $linkPage .= "<a href='".$url."&".$p."=2'>2</a>"; } if($start>=4){ $linkPage .= "<a href='".$url."&".$p."=2'>2</a> <span class='noEndClass'>...</span>"; } //1 2 3 4 5 for($i=$start;$i<=$end;$i++){ if($i!=$this->nowPage){ $linkPage .= " <a href='".$url."&".$p."=$i'> ".$i." </a>"; }else{ $linkPage .= " <span class='current'>".$i."</span>"; } if($i==$end){ if($i<$this->totalRows){ $linkPage .= " <span class='noEndClass'>...</span>"; } } } $pageStr = str_replace( array('%header%','%nowPage%','%totalRow%','%totalPage%','%upPage%','%first%','%prePage%','%linkPage%','%nextPage%','%downPage%','%end%'), array($this->config['header'],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$theFirst,$prePage,$linkPage,$nextPage,$downPage,$theEnd),$this->config['theme']); //显示模式 普通false 带跳转ture if (!empty($this->config['redirect'])){ $html = $pageStr; }else{ //传递参数 if($this->totalPages > 1){ $redirect = " 到第 <form method='get' action=''><input name=".$p." type='text' class='page_text' size='3' maxlength='3' value='" . $this->nowPage ."'/> 页 <input type='submit' class='page_btn' value='确定' />"; if ($params){ foreach($params as $k => $v){ $string .= "<input type='hidden' name='" . $k . "' value='" . $v . "'/>"; } $redirect = $redirect . $string . '</form></div>'; }else{ $redirect = $redirect . '</form></div>'; } } //生成Html字符串 $html = $pageStr . $redirect; } return $html; } }