No matter what snippet I try to save, it gives me the error. In this case I’m trying to save the following one:
<?php // only copy if needed
/**
* Removes coupon form, order notes, and several billing fields if the checkout doesn't require payment.
*
* REQUIRES PHP 5.3+
*
* Tutorial: https://skyver.ge/c
*/
function sv_free_checkout_fields() {
// first, bail if WC isn't active since we're hooked into a general WP hook
if ( ! function_exists( 'WC' ) ) {
return;
}
// bail if the cart needs payment, we don't want to do anything
if ( WC()->cart && WC()->cart->needs_payment() ) {
return;
}
// now continue only if we're at checkout
// is_checkout() was broken as of WC 3.2 in ajax context, double-check for is_ajax
// I would check WOOCOMMERCE_CHECKOUT but testing shows it's not set reliably
if ( function_exists( 'is_checkout' ) && ( is_checkout() || is_ajax() ) ) {
// remove coupon forms since why would you want a coupon for a free cart??
remove_action( 'woocommerce_before_checkout_form', 'woocommerce_checkout_coupon_form', 10 );
// Remove the "Additional Info" order notes
add_filter( 'woocommerce_enable_order_notes_field', '__return_false' );
// Unset the fields we don't want in a free checkout
add_filter( 'woocommerce_checkout_fields', function( $fields ) {
// add or remove billing fields you do not want
// fields: https://docs.woothemes.com/document/tutorial-customising-checkout-fields-using-actions-and-filters/#section-2
$billing_keys = array(
'billing_company',
'billing_phone',
'billing_address_1',
'billing_address_2',
'billing_city',
'billing_postcode',
'billing_country',
'billing_state',
);
// unset each of those unwanted fields
foreach( $billing_keys as $key ) {
unset( $fields['billing'][ $key ] );
}
return $fields;
} );
}
}
add_action( 'wp', 'sv_free_checkout_fields' );
