如何在此PHP腳本中添加從最新圖片到最舊圖片的排序順序？

Question

您能告訴我如何修改以下腳本，以便它輸出帶有從最近修改/添加的文件開始排序的圖片的畫廊嗎？ 該腳本使用GD庫工作。 這是腳本：

function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 
{
  // open the directory
  $dir = opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = readdir( $dir ))) {
// parse path for the extension
$info = pathinfo($pathToImages . $fname);
// continue only if this is a JPEG image
if ( strtolower($info['extension']) == 'jpg' ) 
{
  echo "Creating thumbnail for {$fname} <br />";

  // load image and get image size
  $img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );
  $width = imagesx( $img );
  $height = imagesy( $img );

  // calculate thumbnail size
  $new_width = $thumbWidth;
  $new_height = floor( $height * ( $thumbWidth / $width ) );

  // create a new tempopary image
  $tmp_img = imagecreatetruecolor( $new_width, $new_height );

  // copy and resize old image into new image 
  imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

  // save thumbnail into a file
  imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );
}
  }
  // close the directory
  closedir( $dir );
}

function createGallery( $pathToImages, $pathToThumbs ) 
{
  echo "Creating gallery.html <br />";

  $output = "<html>";
  $output .= "<head><title>Thumbnails</title></head>";
  $output .= "<body>";
  $output .= "<table cellspacing=\"0\" cellpadding=\"2\" width=\"500\">";
  $output .= "<tr>";

  // open the directory
  $dir = opendir( $pathToThumbs );

  $counter = 0;
  // loop through the directory
  while (false !== ($fname = readdir($dir)))
  {
    // strip the . and .. entries out
    if ($fname != '.' && $fname != '..') 
    {
      $output .= "<td valign=\"middle\" align=\"center\"><a href=\"{$pathToImages}{$fname}\">";
      $output .= "<img src=\"{$pathToThumbs}{$fname}\" border=\"0\" />";
      $output .= "</a></td>";

      $counter += 1;
      if ( $counter % 4 == 0 ) { $output .= "</tr><tr>"; }
    }
  }
  // close the directory
  closedir( $dir );

  $output .= "</tr>";
  $output .= "</table>";
  $output .= "</body>";
  $output .= "</html>";

  // open the file
  $fhandle = fopen( "gallery.html", "w" );
  // write the contents of the $output variable to the file
  fwrite( $fhandle, $output ); 
  // close the file
  fclose( $fhandle );
}

// call createThumb function and pass to it as parameters the path 
// to the directory that contains images, the path to the directory
// in which thumbnails will be placed and the thumbnail's width. 
// We are assuming that the path will be a relative path working 
// both in the filesystem, and through the web for links
createThumbs("images/","thumbs/",100);
// call createGallery function and pass to it as parameters the path 
// to the directory that contains images and the path to the directory
// in which thumbnails will be placed. We are assuming that 
// the path will be a relative path working 
// both in the filesystem, and through the web for links
createGallery("images/","thumbs/");

謝謝。

Answer 1

您需要修改createGallery並添加另一個循環。 在第一個循環中，您將目錄讀取到鍵為修改日期的數組。 然后對它進行排序。 然后，在第二個循環中基於排序數組構建HTML。

我還沒有機會進行測試，但這應該可以給您一個想法：

$thumbArray=array();
while (false !== ($fname = readdir($dir)))
  {
    // strip the . and .. entries out
    if ($fname != '.' && $fname != '..') 
    {

      $thumbArray[filemtime($fname)]=$fname;

    }
  }

  krsort($thumbArray);

  foreach($thumbArray as $file=>$path){
      $output .= "<td valign=\"middle\" align=\"center\"><a href=\"{$pathToImages}{$path}\">";
      $output .= "<img src=\"{$pathToThumbs}{$path}\" border=\"0\" />";
      $output .= "</a></td>";

      $counter += 1;
      if ( $counter % 4 == 0 ) { $output .= "</tr><tr>"; }

  }

如何在此PHP腳本中添加從最新圖片到最舊圖片的排序順序？

問題描述

1 個解決方案

解決方案1
0 2014-01-02 20:16:39

如何在此PHP腳本中添加從最新圖片到最舊圖片的排序順序？

問題描述

1 個解決方案

解決方案1 0 2014-01-02 20:16:39

解決方案1
0 2014-01-02 20:16:39