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   2. drupal7

Check that the file is recognized by image_get_info() as an image.

see hook_file_validate()

Übergabeparameter

$file A Drupal file object.

Rückgabewert

An array. If the file is not an image, it will contain an error message.

Verwandte Themen

File interface

Common file handling functions.

Code

includes/file.inc, line 1141

<?php
function file_validate_is_image($file) {
  $errors = array();

  $info = image_get_info($file->filepath);
  if (!$info || empty($info['extension'])) {
    $errors[] = t('Only JPEG, PNG and GIF images are allowed.');
  }

  return $errors;
}
?>