element_validate_integer
function element_validate_integer
element_validate_integer($element, &$form_state)
Form element validation handler for integer elements.
Related topics
File
- includes/form.inc, line 4374
- Functions for form and batch generation and processing.
Code
function element_validate_integer($element, &$form_state) { $value = $element['#value']; if ($value !== '' && (!is_numeric($value) || intval($value) != $value)) { form_error($element, t('%name must be an integer.', array('%name' => $element['#title']))); } }
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https://api.drupal.org/api/drupal/includes!form.inc/function/element_validate_integer/7.x