function file_upload_max_size

Determines the maximum file upload size by querying the PHP settings.

Return value

A file size limit in bytes based on the PHP upload_max_filesize and post_max_size

Related topics

File interface
Common file handling functions.
5 calls to file_upload_max_size()
file_ajax_upload in drupal/core/modules/file/file.module
Ajax callback: Processes file uploads and deletions.
file_field_instance_settings_form in drupal/core/modules/file/file.field.inc
Implements hook_field_instance_settings_form().
file_field_widget_upload_validators in drupal/core/modules/file/file.field.inc
Retrieves the upload validators for a file field.
file_save_upload in drupal/core/includes/file.inc
Saves file uploads to a new location.
locale_translate_import_form in drupal/core/modules/locale/locale.bulk.inc
Form constructor for the translation import screen.

File

drupal/core/includes/file.inc, line 1471
API for handling file uploads and server file management.

Code

function file_upload_max_size() {
  static $max_size = -1;
  if ($max_size < 0) {

    // Start with post_max_size.
    $max_size = parse_size(ini_get('post_max_size'));

    // If upload_max_size is less, then reduce. Except if upload_max_size is
    // zero, which indicates no limit.
    $upload_max = parse_size(ini_get('upload_max_filesize'));
    if ($upload_max > 0 && $upload_max < $max_size) {
      $max_size = $upload_max;
    }
  }
  return $max_size;
}