WooCommerce WP - minimum weight specify while order

WooCommerce WP - minimum weight specify while order.php

<?php

// WooCommerce WP - minimum weight specify while order
add_action( 'woocommerce_check_cart_items', 'spyr_set_weight_requirements' );
function spyr_set_weight_requirements() {
	// Only run in the Cart or Checkout pages
	if( is_cart() || is_checkout() ) {
		global $woocommerce;
		// Set the minimum weight before checking out
		$minimum_weight = 2;
		// Get the Cart's content total weight
		$cart_contents_weight = WC()->cart->cart_contents_weight;
		// Compare values and add an error is Cart's total weight
	    // happens to be less than the minimum required before checking out.
		// Will display a message along the lines of
		// A Minimum Weight of 4kg is required before checking out. (Cont. below)
		// Current cart weight: 12.5kg
		if( $cart_contents_weight < $minimum_weight  ) {
			// Display our error message
			wc_add_notice( sprintf('<strong>Warning!</strong>'),'error');
			wc_print_notice( sprintf('<strong>A Minimum Weight of %s%s is required before checking out.</strong>'
				. '<br />Current cart weight: %s%s',
				$minimum_weight,
				get_option( 'woocommerce_weight_unit' ),
				$cart_contents_weight,
				get_option( 'woocommerce_weight_unit' ),
				get_permalink( wc_get_page_id( 'shop' ) )
				),
			'error'	);
      
		}
	}
}