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<?php
/**
* A class for adding non-removable hooks to prevent saving of credit card details.
*
* Sorry, but these numbers don't belong in WordPress database.
*
* @package Caldera_Forms
* @author Josh Pollock <[email protected]>
* @license GPL-2.0+
* @link
* @copyright 2016 CalderaWP LLC
*/
class Caldera_Forms_Field_Credit {
/**
* Caldera_Forms_Field_Credit constructor.
*
* Adds hooks
*
* @since 1.5.0
*
*/
public function __construct() {
add_filter( 'caldera_forms_save_field_credit_card_number', array( $this, 'credit_card_number' ) );
add_filter( 'caldera_forms_save_field_credit_card_cvc', array( $this, 'credit_card_cvc' ) );
}
/**
* Replace all but last 4 of credit card with Xs
*
* @uses "caldera_forms_save_field_credit_card_number" filter.
*
* @since 1.5.0
*
* @param string $number Credit card number
*
* @return string
*/
public function credit_card_number( $number ){
return substr_replace($number, str_repeat('X', strlen( $number ) - 4), 0, strlen( $number ) - 4);
}
/**
* Replace credit card secret code with Xs
*
* @uses "caldera_forms_save_field_credit_card_cvc"
*
* @since 1.5.0
*
* @param string $number Secret code
*
* @return string
*/
public function credit_card_cvc( $number ){
return str_repeat('X', strlen( $number ) );
}
}