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function image_gd_open in Drupal 6

Same name and namespace in other branches

4 includes/image.inc \image_gd_open()
5 includes/image.inc \image_gd_open()

GD helper function to create an image resource from a file.

Parameters

$file: A string file path where the iamge should be saved.

$extension: A string containing one of the following extensions: gif, jpg, jpeg, png.

Return value

An image resource, or FALSE on error.

Related topics

Image toolkits: Drupal's image toolkits provide an abstraction layer for common image file manipulations like scaling, cropping, and rotating. The abstraction frees module authors from the need to support multiple image libraries, and it allows site…

3 calls to image_gd_open()

image_gd_crop in includes/image.gd.inc: Crop an image using the GD toolkit.
image_gd_resize in includes/image.gd.inc: Scale an image to the specified size using GD.
image_gd_rotate in includes/image.gd.inc: Rotate an image the given number of degrees.

File

includes/image.gd.inc, line 183: GD2 toolkit for image manipulation within Drupal.

Code

function image_gd_open($file, $extension) {
  $extension = str_replace('jpg', 'jpeg', $extension);
  $open_func = 'imageCreateFrom' . $extension;
  if (!function_exists($open_func)) {
    return FALSE;
  }
  return $open_func($file);
}