image_get_info

Get details about an image.

Drupal only supports GIF, JPG and PNG file formats.

Return value

FALSE, if the file could not be found or is not an image. Otherwise, a keyed array containing information about the image: 'width' - Width in pixels. 'height' - Height in pixels. 'extension' - Commonly used file extension for the image. 'mime_type' - MIME type ('image/jpeg', 'image/gif', 'image/png'). 'file_size' - File size in bytes.

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…

File

includes/image.inc, line 115

API for manipulating images.

Code

<?php
function image_get_info($file) {
  // Proceed no further if this file doesn't exist. Some web servers (IIS) may
  // not pass is_file() for newly uploaded files, so we need two checks here.
  if (!is_file($file) && !is_uploaded_file($file)) {
    return FALSE;
  }

  $details = FALSE;
  $data = @getimagesize($file);
  $file_size = @filesize($file);

  if (isset($data) && is_array($data)) {
    $extensions = array(
      '1' => 'gif',
      '2' => 'jpg',
      '3' => 'png',
    );
    $extension = array_key_exists($data[2], $extensions) ?  $extensions[$data[2]] : '';
    $details = array(
      'width' => $data[0], 
      'height' => $data[1], 
      'extension' => $extension, 
      'file_size' => $file_size, 
      'mime_type' => $data['mime'],
    );
  }

  return $details;
}
?>