function _br_tax_number_fields_is_number in Brazilian IDs 7

Helper function for checking if the entered value contains only numbers.

Parameters

Array $element: The form element array.

Array $form_state_values: The $form_state['values'] array.

Return value

String The trimmed value entered by the user.

3 calls to _br_tax_number_fields_is_number()

br_tax_number_fields_cnpj_cpf_validate in ./br_tax_number_fields.module

Validation callback.

br_tax_number_fields_cnpj_validate in ./br_tax_number_fields.module

Validation callback.

br_tax_number_fields_cpf_validate in ./br_tax_number_fields.module

Validation callback.

File

./br_tax_number_fields.module, line 322

Adds Brazilian Tax Number field widgets to text field type at the Field UI and creates new form element types for use in the Form API.

Code

function _br_tax_number_fields_is_number($element, &$form_state_values) {
  $value = trim($element['#value']);
  $value = str_replace(array(
    '.',
    '-',
    '/',
  ), '', $value);

  // The value of $depth_pointer will end up being, in most cases, something
  // like: [group][field_name][un][0][value]
  $depth_pointer = '';
  foreach ($element['#parents'] as $parent) {
    $depth_pointer .= "['{$parent}']";
  }

  // Set the clean value for $form_state[group][field_name][un][0][value]
  // which will be saved into the database.
  eval("\$form_state_values" . $depth_pointer . " = \$value;");
  if (strlen($value) != strlen(preg_replace('/[^0-9]+/', '', $value))) {
    form_error($element, t('%name must have only numbers.', array(
      '%name' => $element['#title'],
    )));
  }
  return $value;
}