Hide Payment Gateway Based on Shipping Option Selected

hide-payment-based-on-shipping.php

/**
 * Hide the PayPal payment option when the customer selects a specific Table Rate option
 * Code snippets should be added to the functions.php file of your child theme
 *
 * @return array
 */
function alter_payment_gateways( $list ){
    // Retrieve chosen shipping options from all possible packages
    $chosen_rates = ( isset( WC()->session ) ) ? WC()->session->get( 'chosen_shipping_methods' ) : array();
 
    if( in_array( 'betrs_shipping:2-3', $chosen_rates ) ) {
        $array_diff = array('WC_Gateway_Paypal');
        $list = array_diff( $list, $array_diff );
    }

    return $list;
}
add_action('woocommerce_payment_gateways', 'alter_payment_gateways');