A snippet to disable 'PayLater' options within EE Paypal Commerce payment method.

tw_ee_disable_paylay_ppc.php

<?php //Do not include the opening PHP tag if you already have one


add_filter(
    'script_loader_src',
    function( $src, $handle ) {
        // Only filter the specific script we want.
        if ( 'eea_paypal_commerce_js_lib' === $handle ) {
            // Add the argument to the exisitng URL.
            $src = add_query_arg( 'disable-funding', 'paylater', $src );
        }

        // Return the filtered URL.
        return $src;
    },
    10, // Default priority.
    2 // IMPORTANT. Needs to match the number of accepted arguments.
);