縮放分頁程序

Question

< < 1 2 3 4 ... 15 17 ... 47 48 49 50 >>

< ... 47 48 49 50 >>

< < 1 2 3 4 ... 44 46 47 48 49 50 >>

（粗體是選定的頁面）

是否有切割邏輯在那裏創建像這樣的縮放分頁？我之前已經創建了其中一個，但它最終成了一團亂七​​八糟的邏輯陳述。

我現在正在做這個的語言是PHP，但如果您有任何語言的示例或技巧，它將不勝感激。

縮放我的意思是當只有幾頁時。分頁顯示了這一點。

< 5 6 7 >>

作爲頁數增長到某一點時，分頁停止展示的所有數字，並開始分裂它們。

< < 2 3 4 ... 47 48 49 50 >>

< 5 6 ... 47 48 49 50 >>

< 7 8 ... 47 48 49 50 >>

< < 1 2 3 4。7 9 ... 47 48 49 50 >>

< < 1 2 3 4 .. 15 17 ... 47 48 49 50 >>

< < 1 2 3 4 ... 44 46 47 48 49 50 >>

< < 1 2 3 4 ... 47 48 49 >>

（注意，實際的數字和它顯示的前後數量無關）

Answer 1

對不起，代碼如下。希望評論足以告訴你它是如何工作的 - 如果留下評論，我可能會添加更多。

/** 
    * Get a spread of pages, for when there are too many to list in a single <select> 
    * Adapted from phpMyAdmin common.lib.php PMA_pageselector function 
    * 
    * @param integer total number of items 
    * @param integer the current page 
    * @param integer the total number of pages 
    * @param integer the number of pages below which all pages should be listed 
    * @param integer the number of pages to show at the start 
    * @param integer the number of pages to show at the end 
    * @param integer how often to show pages, as a percentage 
    * @param integer the number to show around the current page 
    */ 
    protected function pages($rows, $pageNow = 1, $nbTotalPage = 1, $showAll = 200, $sliceStart = 5, $sliceEnd = 5, $percent = 20, $range = 10) 
    { 
     if ($nbTotalPage < $showAll) 
      return range(1, $nbTotalPage); 

     // Always show the first $sliceStart pages 
     $pages = range(1, $sliceStart); 

     // Always show last $sliceStart pages 
     for ($i = $nbTotalPage - $sliceEnd; $i <= $nbTotalPage; $i++) 
      $pages[] = $i; 

     $i = $sliceStart; 
     $x = $nbTotalPage - $sliceEnd; 
     $met_boundary = false; 
     while ($i <= $x) 
     { 
      if ($i >= ($pageNow - $range) && $i <= ($pageNow + $range)) 
      { 
       // If our pageselector comes near the current page, we use 1 
       // counter increments 
       $i++; 
       $met_boundary = true; 
      } 
      else 
      { 
       // We add the percentate increment to our current page to 
       // hop to the next one in range 
       $i = $i + floor($nbTotalPage/$percent); 

       // Make sure that we do not cross our boundaries. 
       if ($i > ($pageNow - $range) && !$met_boundary) 
        $i = $pageNow - $range; 
      } 

      if ($i > 0 && $i <= $x) 
       $pages[] = $i; 
     } 

     // Since because of ellipsing of the current page some numbers may be double, 
     // we unify our array: 
     sort($pages); 
     return array_unique($pages); 
    }