View difference between Paste ID: dnmiUVmk and 8DwRGN41

 <?php
 
 class Image {
     private $image;
     private $filename;
     private $width;
     private $height;
 
     public function __construct($filename_with_path) {
         $this->filename = $filename_with_path;
         $this->image = $this->loadImage();
     }
 
     /**
      * @param type $save_as_filename Just filename, NOT full path. DO NOT include the file extension, .png will be added automatically. Will be saved to ~/resources/images/profile/[$save_as_filename].png
      */
     public function saveProfilePicture($save_as_filename) { // Relative filename
         $filename_with_path = BASE_PATH . '/resources/images/profiles/' . $save_as_filename;
         $this->saveFile($filename_with_path . '.png', 1024, 1024, False); // Save full-size image
         $this->saveFile($filename_with_path . '-32.png', 32, 32, True);
         $this->saveFile($filename_with_path . '-48.png', 48, 48, True);
         $this->saveFile($filename_with_path . '-64.png', 64, 64, True);
         $this->saveFile($filename_with_path . '-128.png', 128, 128, True);
         $this->saveFile($filename_with_path . '-256.png', 256, 256, True);
     }
 
     /**
      * @param type $save_as_filename Just filename, NOT full path. DO NOT include the file extension, .png will be added automatically. Will be saved to ~/resources/images/lists/[$save_as_filename].png
      */
     public function saveListLogo($save_as_filename) { // Relative filename
         $filename_with_path = BASE_PATH . '/resources/images/lists/' . $save_as_filename;
         $this->saveFile($filename_with_path . '.png', 1024, 1024, False); // Save full-size image
         $this->saveFile($filename_with_path . '-32.png', 32, 32, False);
         $this->saveFile($filename_with_path . '-48.png', 48, 48, False);
         $this->saveFile($filename_with_path . '-64.png', 64, 64, False);
         $this->saveFile($filename_with_path . '-128.png', 128, 128, False);
         $this->saveFile($filename_with_path . '-256.png', 256, 256, False);
     }
 
     /**
      *
      * @param type $filename_with_path
      * @param type $width Optional.
      * @param type $height Optional.
      * @param type $crop_to_dimensions Optional. Crops image to the desired dimensions.
      */
     public function saveFile($filename_with_path, $width, $height, $crop_to_dimensions = False) {
         $resizedImage = $this->resizeImage($width, $height, $crop_to_dimensions);
         imagePng($resizedImage, $filename_with_path, 9, PNG_ALL_FILTERS);
     }
 
     public function loadImage() {
         $image_info = getImageSize($this->filename); // http://www.php.net/manual/en/function.getimagesize.php
         $this->width = $image_info[0];
         $this->height = $image_info[1];
 
         // Check if there was an error calling getImageSize():
         if($image_info === False) {
             throw new Exception('Unable to grab image size');
             return;
         }
 
         // Define function names for possibly returned mime types
         $image_functions = array(
             IMAGETYPE_GIF  => 'imageCreateFromGif',
             IMAGETYPE_JPEG => 'imageCreateFromJpeg',
             IMAGETYPE_PNG  => 'imageCreateFromPng',
             IMAGETYPE_WBMP => 'imageCreateFromwBmp',
             IMAGETYPE_XBM  => 'imageCreateFromwXbm',
         );
 
         // Check if there was an error calling getImageSize():
         if(!function_exists($image_functions[$image_info[2]])) {
             throw new Exception('Unknown file type');
             return;
         }
 
         $image = $image_functions[$image_info[2]]($this->filename);
         imageAlphaBlending($image, False);
         imageSaveAlpha($image, True);
 
         return $image;
     }
 
     public function getFileExtension() {
         $file_extension = pathinfo($this->filename, PATHINFO_EXTENSION);
         return strtolower($file_extension);
     }
 
     function resizeImage($target_width, $target_height, $crop_to_dimensions = False) {
         //print 'Original: ' . $this->width . 'x' . $this->height . '<br />';
 
         if($crop_to_dimensions === True) {
             $width_ratio = $target_width / $this->width;
             //print 'Width Ratio: ' . $width_ratio . '<br />';
             $height_ratio = $target_height / $this->height;
             //print 'Height Ratio: ' . $height_ratio . '<br />';
             if($width_ratio > $height_ratio) {
                 //print 'Width Wins<br />';
                 $resized_width = $target_width;
                 $resized_height = $this->height * $width_ratio;
             } else {
                 //print 'Height Wins<br />';
                 $resized_height = $target_height;
                 $resized_width = $this->width * $height_ratio;
             }
         } else {
             $width_ratio = $target_width / $this->width;
             //print 'Width Ratio: ' . $width_ratio . '<br />';
             $resized_width = $target_width;
             $resized_height = $this->height * $width_ratio;
             //print 'Resized: ' . $resized_width . 'x' . $resized_height . '<br />';
             if($resized_height > $target_height) {
                 $height_ratio = $target_height / $resized_height;
                 $resized_height = $target_height;
                 //print 'Height Ratio: ' . $height_ratio . '<br />';
                 $resized_width = $resized_width * $height_ratio;
                 //print 'Resized: ' . $resized_width . 'x' . $resized_height . '<br />';
             }
         }
 
         // Drop decimal values
         $resized_width = round($resized_width);
         $resized_height = round($resized_height);
 
         // Calculations for centering the image
         $offset_width = round(($target_width - $resized_width) / 2);
         $offset_height = round(($target_height - $resized_height) / 2);
 
         //print 'Width Offset: ' . $offset_width . '<br />';
         //print 'Height Offset: ' . $offset_height . '<br />';
 
         $new_image = imageCreateTrueColor($target_width, $target_height);
         imageAlphaBlending($new_image, False);
         imageSaveAlpha($new_image, True);
         $transparent = imageColorAllocateAlpha($new_image, 0, 0, 0, 127);
         imagefill($new_image, 0, 0, $transparent);
 
         imageCopyResampled($new_image, $this->image, $offset_width, $offset_height, 0, 0, $resized_width, $resized_height, $this->width, $this->height);
 
         //print 'Final: ' . $resized_width . 'x' . $resized_height . '<br /><br /><br />';
         return $new_image;
     }
 
     function resizeToHeight($original_width, $original_height, $desired_height) {
         //print 'resize height: ' . $desired_height . '<br />';
         $ratio = $desired_height / $original_height;
         //print '- ratio: ' . $ratio . '<br />';
         $width = $original_width * $ratio;
         //print '- new width: ' . $width . '<br />';
         //print '- new height: ' . $desired_height . '<br />';
         return array(
             'width' => $width,
             'height' => $desired_height
         );
     }
 
     function resizeToWidth($original_width, $original_height, $desired_width) {
         $ratio = $desired_width / $original_width;
         $height = $original_height * $ratio;
         return array(
             'width' => $desired_width,
             'height' => $height
         );
     }
 }