2nd Radio button selected on page load

2nd Radio button selected on page load

add_filter( 'woocommerce_available_payment_gateways', 'set_default_payment_gateway' );

function set_default_payment_gateway( $available_gateways ) {
    // Ensure there are available payment gateways
    if ( ! is_admin() && isset( $available_gateways ) && count( $available_gateways ) > 1 ) {
        // Get the keys of available gateways
        $gateway_keys = array_keys( $available_gateways );
        
        // Set the second gateway (index 1) as default
        if ( isset( $gateway_keys[1] ) ) {
            $default_gateway = $gateway_keys[1];
            // Set the selected gateway to the second one
            WC()->session->set( 'chosen_payment_method', $default_gateway );
        }
    }
    
    return $available_gateways;
}