1 form.inc | html_date_validate($element, &$form_state) |
Validate a date string.
Related topics
File
- core/
includes/ form.inc, line 3299 - Functions for form and batch generation and processing.
Code
function html_date_validate($element, &$form_state) {
$date = $element['#value'];
if (!empty($date)) {
$valid_date = FALSE;
$created_date = DateTime::createFromFormat(DATE_FORMAT_DATE, $date);
if (is_object($created_date)) {
// DateTime::createFromFormat alone is too permissive.
if ($created_date->format(DATE_FORMAT_DATE) == $date) {
$valid_date = TRUE;
}
}
if (!$valid_date) {
form_error($element, t('%date is not a valid date.', array('%date' => $date)));
}
}
}