function element_validate_number

element_validate_number($element, &$form_state)

Form element validation handler for number elements.

Related topics

File

includes/form.inc, line 4394

Functions for form and batch generation and processing.

Code

function element_validate_number($element, &$form_state) {
  $value = $element['#value'];
  if ($value != '' && !is_numeric($value)) {
    form_error($element, t('%name must be a number.', array('%name' => $element['#title'])));
  }
}