<?php //namespace Component; /** * 2016-3-27 * @author ankang */ class Page { private $ShowPage; private $CountPage; private $Floorp; private $PageUrl; private $PageClass; private $CurClass; /** * @author ankang * @param number $CountNum 数据总数 * @param string $PageUrl 跳转链接 * @param string $PageClass <a>标签 总体样式 * @param string $PageUrl 当前页样式 * @param number $PageSize 每页显示的数据条数 * @param number $ShowPage 每次显示的页数 */ public function __construct($CountNum, $PageUrl = NULL, $PageClass = NULL,$CurClass = NULL, $PageSize = 20, $ShowPage = 5) { $this->ShowPage = $ShowPage; $this->CountPage = ceil ( $CountNum / $PageSize ); $this->Floorp = floor ( $ShowPage / 2 ); // 偏移量 $this->PageClass = is_null ( $PageClass ) ? ‘‘ : $PageClass; $this->CurClass = is_null ( $CurClass ) ? ‘‘ : $CurClass; // $ServerURL = ( preg_match(‘/\?/i‘, $_SERVER[‘REQUEST_URI‘]))?preg_replace(‘/\&p\=[0-9]+/i‘, "", $_SERVER[‘REQUEST_URI‘]) : $_SERVER[‘REQUEST_URI‘]."?"; // if( substr($ButURL,0,2)==‘//‘ ){ // $ServerURL = substr($ServerURL,1); // } // $url = preg_replace(‘/p=[\d]*/i‘, ‘‘, $ServerURL); $url = ‘‘; //推荐自己传url,不传也可以打开上面的代码自动获取 $this->PageUrl = is_null ( $PageUrl ) ? $url : $PageUrl; } /** * * @param number $Page * @param string $ShowToPage * 首页,上下页,尾页 * @param string $Html 标签元素,li,p * @return string */ public function getPage($Page = 1, $ShowToPage = true, $Html = null) { $StartPage = ($Page - $this->Floorp); // 开始页码 $EndPage = ($Page + $this->Floorp); // 结束页码 if ($this->CountPage < $this->ShowPage) { $StartPage = 1; $EndPage = $this->CountPage; } if ($StartPage < 1) { $StartPage = 1; $EndPage = $this->ShowPage; } if ($EndPage > $this->CountPage) { $StartPage = $this->CountPage - $this->ShowPage + 1; $EndPage = $this->CountPage; } $PageHtml = ‘‘; if (! is_null ( $Html )) { if ($Html == ‘li‘) { $Shtml = ‘<li>‘; $Ehtml = ‘</li>‘; } else { $Shtml = ‘<p>‘; $Ehtml = ‘</p>‘; } } if (true == $ShowToPage) { $PageHtml .= "$Shtml<a href=‘{$this->PageUrl}p=1‘>« 首页</a>$Ehtml"; $PrveUrl = $this->getPrve($Page); $PageHtml .= "$Shtml<a href=‘{$PrveUrl}‘>« 上一页</a>$Ehtml"; } for($i = $StartPage; $i <= $EndPage; $i ++) { if ($Page == $i) { $PageHtml .= "$Shtml<a href=‘{$this->PageUrl}p={$i}‘ class=‘{$this->CurClass}‘>{$i}</a>$Ehtml"; } else { $PageHtml .= "$Shtml<a href=‘{$this->PageUrl}p={$i}‘ class=‘{$this->PageClass}‘>{$i}</a>$Ehtml"; } } if (true == $ShowToPage) { $NextUrl = $this->getNext($Page); $PageHtml .= "$Shtml<a href=‘{$NextUrl}‘>下一页 »</a>$Ehtml"; $PageHtml .= "$Shtml<a href=‘{$this->PageUrl}p={$this->CountPage}‘ >尾页 »</a>$Ehtml"; } return $PageHtml; } public function getPrve($Page){ if ($Page != 1) { $Prve = $Page - 1; $PrveUrl = "{$this->PageUrl}p={$Prve}"; } else { $PrveUrl = "{$this->PageUrl}p=1"; } return $PrveUrl; } public function getNext($Page){ if ($Page != $this->CountPage) { $Next = $Page + 1; $NextUrl = "{$this->PageUrl}p={$Next}"; } else { $NextUrl = "{$this->PageUrl}p={$this->CountPage}"; } return $NextUrl; } }
时间: 2024-11-05 18:52:00