Set min amount on woocommerce

woocommerce-min.php

function disablegateways( $gateways ) {

	if( is_admin() ) {
		return $gateways;
	}

		if ( isset( $gateways[ 'stripe' ] ) ) {
			unset( $gateways[ 'stripe' ] );
		}
		if ( isset( $gateways[ 'paypal' ] ) ) {
			unset( $gateways[ 'paypal' ] );
		}
var_dump($gateways);
die();

	return $gateways;
}


/**
 * Set a minimum order amount for checkout
 */
add_action( 'woocommerce_before_checkout_form', 'wc_minimum_order_amount' );
add_action( 'woocommerce_before_cart' , 'wc_minimum_order_amount' );

 
function wc_minimum_order_amount() {
    // Set this variable to specify a minimum order value
    $minimum = 25;
    $total=WC()->cart->total - WC()->cart->shipping_total ;

    if ( $total < $minimum ) {
add_filter( 'woocommerce_available_payment_gateways', 'disablegateways' );
      wc_add_notice( 
                sprintf( 'Your current order total is %s — you must have an order with a minimum of %s to place your order' , 
                    wc_price($total), 
                    wc_price( $minimum )
                ), 'error' 
            );
    }
}