hook_file_validate
function hook_file_validate
hook_file_validate($file)
Check that files meet a given criteria.
This hook lets modules perform additional validation on files. They're able to report a failure by returning one or more error messages.
Parameters
$file: The file object being validated.
Return value
An array of error messages. If there are no problems with the file return an empty array.
See also
Related topics
File
- modules/system/system.api.php, line 2846
- Hooks provided by Drupal core and the System module.
Code
function hook_file_validate($file) { $errors = array(); if (empty($file->filename)) { $errors[] = t("The file's name is empty. Please give a name to the file."); } if (strlen($file->filename) > 255) { $errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again."); } return $errors; }
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