Validate phone number in WooCommerce

Question

I would like to add custom validation to the phone number (billing_phone) on the checkout page and the register page.

• With 05
• Accept 10 numbers

Validate phone number in woocommerce checkout page

Answer 1

Just Check I hope it works

 add_filter('woocommerce_process_registration_errors','custom_validate_billing_phone',10, 4 ) add_action( "woocommerce_after_save_address_validation",'custom_validate_billing_phone',1,2); add_action('woocommerce_checkout_process', 'custom_validate_billing_phone'); function custom_validate_billing_phone() { $is_correct = preg_match('/^05[0-9]{8}$/', $_POST['billing_phone']); if ( $_POST['billing_phone'] &&.$is_correct) { wc_add_notice( __( 'The Phone field should be <strong>start 05 and 10 digits</strong>,' ); 'error' ); } }