gform_card_number_<form_id>

The Gravity Forms gform card number form id hook.

Description

apply_filters( 'gform_card_number_<form_id>', (number) $card_number_label, $form_id ); 

Parameters (2)

0. $card_number_label (number)
The card number label.
1. $form_id
The form id.

Usage

To run the hook, copy the example below.
  1. $card_number_label = apply_filters( 'gform_card_number_{$form_id}', $card_number_label, $form_id ); 
  2.  
  3. if ( !empty( $card_number_label ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the gform_card_number_<form_id> callback 
  2. function filter_gform_card_number_form_id( $card_number_label, $form_id ) { 
  3. // make filter magic happen here... 
  4. return $card_number_label
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( "gform_card_number_{$form_id}", 'filter_gform_card_number_form_id', 10, 2 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( "gform_card_number_{$form_id}", 'filter_gform_card_number_form_id', 10, 2 ); 

Defined (1)

The filter is defined in the following location(s).

/includes/fields/class-gf-field-creditcard.php  
  1. $card_number_label = gf_apply_filters( array( 'gform_card_number', $form_id ), $card_number_label, $form_id );