function smart_resize_image( $file, $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = true, $use_linux_commands = false )      {          if ( $height <= 0 && $width <= 0 ) {              return false;          }          $info = getimagesize($file);          $image = '';            $final_width = 0;          $final_height = 0;          list($width_old, $height_old) = $info;            if ($proportional) {              if ($width == 0) $factor = $height/$height_old;              elseif ($height == 0) $factor = $width/$width_old;              else $factor = min ( $width / $width_old, $height / $height_old);                $final_width = round ($width_old * $factor);              $final_height = round ($height_old * $factor);            }          else {                     $final_width = ( $width <= 0 ) ? $width_old : $width;              $final_height = ( $height <= 0 ) ? $height_old : $height;          }            switch ($info[2] ) {              case IMAGETYPE_GIF:                  $image = imagecreatefromgif($file);              break;              case IMAGETYPE_JPEG:                  $image = imagecreatefromjpeg($file);              break;              case IMAGETYPE_PNG:                  $image = imagecreatefrompng($file);              break;              default:                  return false;          }            $image_resized = imagecreatetruecolor( $final_width, $final_height );            if ( ($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG) ) {              $trnprt_indx = imagecolortransparent($image);              // If we have a specific transparent color              if ($trnprt_indx >= 0) {                  // Get the original image's transparent color's RGB values                  $trnprt_color    = imagecolorsforindex($image, $trnprt_indx);                  // Allocate the same color in the new image resource                  $trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);                  // Completely fill the background of the new image with allocated color.                  imagefill($image_resized, 0, 0, $trnprt_indx);                  // Set the background color for new image to transparent                  imagecolortransparent($image_resized, $trnprt_indx);              }              // Always make a transparent background color for PNGs that don't have one allocated already              elseif ($info[2] == IMAGETYPE_PNG) {                  // Turn off transparency blending (temporarily)                  imagealphablending($image_resized, false);                  // Create a new transparent color for image                  $color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);                    // Completely fill the background of the new image with allocated color.                  imagefill($image_resized, 0, 0, $color);                    // Restore transparency blending                  imagesavealpha($image_resized, true);              }          }            imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);            if ( $delete_original ) {              if ( $use_linux_commands )                  exec('rm '.$file);              else                  @unlink($file);          }            switch ( strtolower($output) ) {              case 'browser':                  $mime = image_type_to_mime_type($info[2]);                  header("Content-type: $mime");                  $output = NULL;              break;              case 'file':                  $output = $file;              break;              case 'return':                  return $image_resized;              break;              default:              break;          }            switch ($info[2] ) {              case IMAGETYPE_GIF:                  imagegif($image_resized, $output);              break;              case IMAGETYPE_JPEG:                  imagejpeg($image_resized, $output);              break;              case IMAGETYPE_PNG:                  imagepng($image_resized, $output);              break;              default:                  return false;          }            return true;      }