gform_phone_formats

Description

The gform_phone_formats filter can be used to add new formats to those listed within the Phone field.

Usage

The following would apply to all forms.

add_filter( 'gform_phone_formats', 'your_function_name', 10, 2 );

To limit the scope of your function to a specific form, append the form id to the end of the hook name. (format: gform_phone_formats_FORMID)

add_filter( 'gform_phone_formats_5', 'your_function_name', 10, 2 );

Parameters

• $phone_formats array
  The phone formats.
• $form_id integer
  The ID of the current form.

$phone_formats

The following shows the default declaration of the $phone_formats array.

array(
	'standard'      	=> array(
		'label'       		=> '(###) ###-####',
		'mask'        		=> '(999) 999-9999',
		'regex'       		=> '/^\D?(\d{3})\D?\D?(\d{3})\D?(\d{4})$/',
		'instruction' 		=> '(###) ###-####',
		'type'       		=> 'standard',
	),
	'international' 	=> array(
		'label'       		=> __( 'International', 'gravityforms' ),
		'mask'        		=> false,
		'regex'       		=> false,
		'instruction' 		=> false,
		'type'       		=> 'international',
	),
)

Each phone format consists of four properties.

• label string
  The label which will be displayed for the choice in the Phone Format setting, on the fields properties tab, in the form editor.
• mask string | boolean
  The input mask to be applied to the input when the form is displayed, or false if an input mask should not be used. See the Input Mask article for some usage examples.
• regex string | boolean
  The regular expression which should be used when validating the field value on submission, or false if validation of the value should not be performed.
• instruction string | boolean
  The text you want to display beneath the field input if the value fails the validation performed using the above regex, (i.e. Phone format: (###) ###-####) or false if you don’t want to display the instruction.

Examples

1. Add a UK phone format for all forms

The following example adds a UK format, including validation regex. It does not enable an input mask and does not display any instruction text if the field fails validation.

add_filter( 'gform_phone_formats', 'uk_phone_format' );
function uk_phone_format( $phone_formats ) {
	$phone_formats['uk'] = array(
		'label'       => 'UK',
		'mask'        => false,
		'regex'       => '/^(((\+44\s?\d{4}|\(?0\d{4}\)?)\s?\d{3}\s?\d{3})|((\+44\s?\d{3}|\(?0\d{3}\)?)\s?\d{3}\s?\d{4})|((\+44\s?\d{2}|\(?0\d{2}\)?)\s?\d{4}\s?\d{4}))(\s?\#(\d{4}|\d{3}))?$/',
		'instruction' => false,
	);

	return $phone_formats;
}

2. Add a Spanish phone format for all forms

The following example adds a Spanish format, including validation regex that will accept only Spanish numbers in local format (no international prefix). It does not enable an input mask and does not display any instruction text if the field fails validation.

add_filter( 'gform_phone_formats', 'es_phone_format' );
function es_phone_format( $phone_formats ) {
	$phone_formats['es'] = array(
		'label'       => 'Spain',
		'mask'        => '999999999',
		'regex'       => '/^[9|6|7|8][0-9]{8}$/',
		'instruction' => 'Introduce los 9 dígitos sin guiones ni espacios.',
	);

	return $phone_formats;
}

Placement

This code can be used in the functions.php file of the active theme, a custom functions plugin, a custom add-on, or with a code snippets plugin.

See also the PHP section in this article: Where Do I Put This Code?

Since

This filter was added in Gravity Forms 2.0-beta-2.2.

Source Code

This filter is located in GF_Field_Phone::get_phone_formats() in includes/fields/class-gf-field-phone.php.