How to Make PHP run "only" in specific Category

I’m quite new to PHP just completed a Codecademy course and still learning “isn’t the internet a wonderful thing” any how, I have put some PHP into my functions.php the problem is its executing site wide.

The PHP is meant to run only for products in a specific category of woocommerce everything works just how do I tell wordpress “hey, only do this php for woocommerce products in category A”

Here’s the code anyone know ?

//Remove cart options from under short description.

remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30 );

		//Filter below adds new tab and returns cart options within tab.

add_filter( 'woocommerce_product_tabs', 'woo_new_product_tab' );
function woo_new_product_tab( $tabs ) {
	// Adds the new tab
		$tabs['plans'] = array( 'title' => __( 'Price Plans', 'woocommerce' ), 'priority' => 50, 'callback' => 'woo_new_product_tab_content' );
	return $tabs;
}
function woo_new_product_tab_content() {
	// The new tab content
		woocommerce_template_single_add_to_cart();
} 

	//Filter below changes tab priority to display price plans first.

add_filter( 'woocommerce_product_tabs', 'sb_woo_move_description_tab', 98);
function sb_woo_move_description_tab($tabs) {

		$tabs['plans']['priority'] = 5;
		$tabs['description']['priority'] = 10;
		$tabs['reviews']['priority'] = 20;

	return $tabs;
}