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<?php
//Replaces product price by out of stock message in case a variable product is out of stock (optional)
add_action('woocommerce_before_single_product_summary',function(){
	if(is_product()){
		global $product;
		if(!$product->is_in_stock()){
			remove_action('woocommerce_single_variation','woocommerce_single_variation');
			remove_action('woocommerce_single_product_summary','woocommerce_template_single_price');
			add_action('woocommerce_single_product_summary',function(){
				?>
					<p class="stock out-of-stock"><?php _e( 'This product is currently out of stock and unavailable.', 'woocommerce' ); ?></p>
				<?php
			});
		}
	}
});
?>