_element_validate_integer_positive($element, &$form_state)Helper form element validator: integer > 0.
modules/field_ui/field_ui.admin.inc, line 1329
<?php
function _element_validate_integer_positive($element, &$form_state) {
$value = $element['#value'];
if ($value !== '' && (!is_numeric($value) || intval($value) != $value || $value <= 0)) {
form_error($element, t('%name must be a positive integer.', array('%name' => $element['#title'])));
}
}
?>