Make some billing fields optional

pmpro-billing-fields-optional.php

<?php
/**
 * Remove the some billing fields generated by PMPro or Address for Free Levels Add On
 * Add this code to your site by following this guide - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_remove_billing_required( $pmpro_required_billing_fields ){

    // Correctly define the array of fields you want to remove
    $remove_fields = array( 'baddress1','baddress2', 'bcity','bstate','bcountry','bphone',);
	// add bfirstname blastname or bzipcode

    // Loop through the $remove_fields array and unset each billing field to make it optional.
    foreach($remove_fields as $field){
        unset($pmpro_required_billing_fields[$field]);
    }            

    return $pmpro_required_billing_fields;
}


add_filter('pmpro_required_billing_fields', 'my_pmpro_remove_billing_required', 50 );


add_action( 'wp_head', 'wp_head_hide_billing_fields' );
function wp_head_hide_billing_fields() {
	global $pmpro_pages;
	if ( empty( $pmpro_pages ) || ( ! is_page( $pmpro_pages['checkout'] ) && ! is_page( $pmpro_pages['billing'] ) ) ) {
		return;
	}
	?>
	<style>
		/* .pmpro_form_field.pmpro_form_field-text.pmpro_form_field-bfirstname, */
		/*.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-blastname,*/
		.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-baddress1,
		.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-baddress2,
		.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-bcity,
		.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-bstate,
		/* .pmpro_form_field.pmpro_form_field-text.pmpro_form_field-bzipcode, */
		.pmpro_form_field.pmpro_form_field-select.pmpro_form_field-bcountry,
		.pmpro_form_field.pmpro_form_field-text.pmpro_form_field-bphone
	
	{
			display: none;
		}
	</style>
	<?php
}