<?phpnamespace org;//命名規范class Page{  public $firstRow; // 起始行數  public $listRows; // 列表每頁顯示行數  public $parameter; // 分頁跳轉時要帶的參數  public $totalRows; // 總行數  public $totalPages; // 分頁總頁面數  public $rollPage  = 7;// 分頁欄每頁顯示的頁數  public $lastSuffix = false; // 最后一頁是否顯示總頁數  private $p    = 'p'; //分頁參數名  private $url   = ''; //當前鏈接URL  private $nowPage = 1;  // 分頁顯示定制  private $config = array(    'header' => '<span class="rows">共 %TOTAL_ROW% 條記錄</span>',    'prev'  => '<<',    'next'  => '>>',    'first' => '1...',    'last'  => '...%TOTAL_PAGE%',    'theme' => '%FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END%',  );  /**   * 架構函數   * @param array $totalRows 總的記錄數   * @param array $listRows 每頁顯示記錄數   * @param array $parameter 分頁跳轉的參數   */  public function __construct($totalRows, $listRows=20, $parameter = array()) {    config('var_page') && $this->p = config('var_page'); //設置分頁參數名稱    /* 基礎設置 */    $this->totalRows = $totalRows; //設置總記錄數    $this->listRows  = $listRows; //設置每頁顯示行數    $this->parameter = empty($parameter) ? input('param.'):$parameter;//因為tp5無法直接獲取到$_GET,所以這里直接拿tp5的函數input('param.'),下面的一樣    $this->nowPage  = empty(input('param.p')) ? 1 : intval(input('param.p'));    $this->nowPage  = $this->nowPage>0 ? $this->nowPage : 1;    $this->firstRow  = $this->listRows * ($this->nowPage - 1);  }  /**   * 定制分頁鏈接設置   * @param string $name 設置名稱   * @param string $value 設置值   */  public function setConfig($name,$value) {    if(isset($this->config[$name])) {      $this->config[$name] = $value;    }  }  /**   * 生成鏈接URL   * @param integer $page 頁碼   * @return string   */  private function url($page){    $ispage = str_replace(urlencode('[PAGE]'), $page, $this->url);    return $ispage;  }  /**   * 組裝分頁鏈接   * @return string   */  public function show() {    if(0 == $this->totalRows) return '';    /* 生成URL */    $this->parameter[$this->p] = '[PAGE]';    $this->url = url(request()->action(), $this->parameter);//生成url改成tp5獲取當前action的    /* 計算分頁信息 */    $this->totalPages = ceil($this->totalRows / $this->listRows); //總頁數    if(!empty($this->totalPages) && $this->nowPage > $this->totalPages) {      $this->nowPage = $this->totalPages;    }    /* 計算分頁臨時變量 */    $now_cool_page   = $this->rollPage/2;    $now_cool_page_ceil = ceil($now_cool_page);    $this->lastSuffix && $this->config['last'] = $this->totalPages;    //上一頁    $up_row = $this->nowPage - 1;    $up_page = $up_row > 0 ? '<a class="prev" href="' . $this->url($up_row) . '" rel="external nofollow" >' . $this->config['prev'] . '</a>' : '';    //下一頁    $down_row = $this->nowPage + 1;    $down_page = ($down_row <= $this->totalPages) ? '<a class="next" href="' . $this->url($down_row) . '" rel="external nofollow" >' . $this->config['next'] . '</a>' : '';    //第一頁    $the_first = '';    if($this->totalPages > $this->rollPage && ($this->nowPage - $now_cool_page) >= 1){      $the_first = '<a class="first" href="' . $this->url(1) . '" rel="external nofollow" >' . $this->config['first'] . '</a>';    }    //最后一頁    $the_end = '';    if($this->totalPages > $this->rollPage && ($this->nowPage + $now_cool_page) < $this->totalPages){      $the_end = '<a class="end" href="' . $this->url($this->totalPages) . '" rel="external nofollow" >' . $this->config['last'] . '</a>';    }    //數字連接    $link_page = "";    for($i = 1; $i <= $this->rollPage; $i++){      if(($this->nowPage - $now_cool_page) <= 0 ){        $page = $i;      }elseif(($this->nowPage + $now_cool_page - 1) >= $this->totalPages){        $page = $this->totalPages - $this->rollPage + $i;      }else{        $page = $this->nowPage - $now_cool_page_ceil + $i;      }      if($page > 0 && $page != $this->nowPage){        if($page <= $this->totalPages){          $link_page .= '<a class="num" href="' . $this->url($page) . '" rel="external nofollow" >' . $page . '</a>';        }else{          break;        }      }else{        if($page > 0 && $this->totalPages != 1){          $link_page .= '<span class="current">' . $page . '</span>';        }      }    }    //替換分頁內容    $page_str = str_replace(      array('%HEADER%', '%NOW_PAGE%', '%UP_PAGE%', '%DOWN_PAGE%', '%FIRST%', '%LINK_PAGE%', '%END%', '%TOTAL_ROW%', '%TOTAL_PAGE%'),      array($this->config['header'], $this->nowPage, $up_page, $down_page, $the_first, $link_page, $the_end, $this->totalRows, $this->totalPages),      $this->config['theme']);    return "<div>{$page_str}</div>";  }}