German Rumm’s blog

/**
 * $image_path string Path to an image file.
 * $size string Thumbnail dimensions in <width>x<height> format
 * 
 * @returns string Path to created thumbnail
 */
function thumbnail($image_path, $size = '200x150') {
  list($width, $height) = getimagesize($image_path);
  $image_aspect = $width / $height;
 
  list($thumb_width, $thumb_height) = explode('x', $size);
  $thumb_aspect = $thumb_width / $thumb_height;
 
  if ($image_aspect > $thumb_aspect) {
    $crop_height = $height;
    $crop_width = round($crop_height * $thumb_aspect);
  } else {
    $crop_width = $width;
    $crop_height = round($crop_width / $thumb_aspect);
  }
 
  $crop_x_offset = round(($width - $crop_width) / 2);
  $crop_y_offset = round(($height - $crop_height) / 2);
 
  // crop parameter
  $crop_size = $crop_width.'x'.$crop_height.'+'.$crop_x_offset.'+'.$crop_y_offset;
 
  // thumbnail is created next to original image with th- prefix.
  $thumb = dirname($image_path).'/th-'.basename($image);
  exec('convert '. escapeshellarg($path).' -crop ' . $crop_size .' -thumbnail '.$size.' '. escapeshellarg($thumb));
 
  return $thumb;
}

	xdebug_start_code_coverage(XDEBUG_CC_UNUSED); // this is needed for percentage.
	// ... some code here
	require_once('CodeCoverageRenderer.php');
	$renderer = new CodeCoverageRenderer(xdebug_get_code_coverage());
	$renderer->render();