function file_validate_size

Checks that the file's size is below certain limits.


$file: A Drupal file object.

$file_limit: An integer specifying the maximum file size in bytes. Zero indicates that no limit should be enforced.

$user_limit: An integer specifying the maximum number of bytes the user is allowed. Zero indicates that no limit should be enforced.

Return value

An array. If the file size exceeds limits, it will contain an error message.

See also


Related topics

1 call to file_validate_size()
FileValidatorTest::testFileValidateSize in drupal/modules/simpletest/tests/file.test
Test file_validate_size().


drupal/includes/, line 1773
API for handling file uploads and server file management.


function file_validate_size(stdClass $file, $file_limit = 0, $user_limit = 0) {
  global $user;
  $errors = array();
  if ($file_limit && $file->filesize > $file_limit) {
    $errors[] = t('The file is %filesize exceeding the maximum file size of %maxsize.', array(
      '%filesize' => format_size($file->filesize),
      '%maxsize' => format_size($file_limit),

  // Save a query by only calling file_space_used() when a limit is provided.
  if ($user_limit && file_space_used($user->uid) + $file->filesize > $user_limit) {
    $errors[] = t('The file is %filesize which would exceed your disk quota of %quota.', array(
      '%filesize' => format_size($file->filesize),
      '%quota' => format_size($user_limit),
  return $errors;