woo cart change continue shopping button text

add_action('woocommerce_cart_actions', function() {
  ?>
  <a class="button wc-backward" href="<?php echo esc_url( apply_filters( 'woocommerce_return_to_shop_redirect', wc_get_page_permalink( 'shop' ) ) ); ?>"> <?php _e( 'Return to shop', 'woocommerce' ) ?> </a>
  <?php
});

woo products per page

//woo Change number of products that are displayed per page (shop page)

add_filter( 'loop_shop_per_page', 'new_loop_shop_per_page', 20 );
function new_loop_shop_per_page( $cols ) {
  // $cols contains the current number of products per page based on the value stored on Options –> Reading
  // Return the number of products you wanna show per page.
  $cols = 12;
  return $cols;
}

woo clear cart button

//Add clear cart button on checkout page
	// check for empty-cart get param to clear the cart
add_action( 'init', 'woocommerce_clear_cart_url' );
function woocommerce_clear_cart_url() {
    global $woocommerce;
    if ( isset( $_GET['empty-cart'] ) ) {
        $woocommerce->cart->empty_cart();
    }
}
add_action( 'woocommerce_cart_actions', 'patricks_add_clear_cart_button', 20 );
function patricks_add_clear_cart_button() {
    echo "<a class='button' href='?empty-cart=true'>" . __( 'Empty Cart', 'woocommerce' ) . "</a>";
} 

woo change order status on payment

add_action( 'sliced_payment_made', 'sliced_woocommerce_set_order_status_2018_08_17', 10, 3 );
function sliced_woocommerce_set_order_status_2018_08_17( $id, $gateway, $status ) {
	if( $status === 'success' ) {
		$order_id = get_post_meta( $id, '_sliced_invoice_woocommerce_order', true );
		if( $order_id ) {
			// update woocommerce order status to 'completed'
			$order = new WC_Order($order_id);
			$order->update_status('completed');
		} else {
			return; // not tied to woocommerce order
		}
	}
}

comment smackdown

// Disable comments and hide from admin menu and admin bar in functions.php
add_action('admin_init', function () {
    // Redirect any user trying to access comments page
    global $pagenow;
    
    if ($pagenow === 'edit-comments.php') {
        wp_redirect(admin_url());
        exit;
    }

    // Remove comments metabox from dashboard
    remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal');

    // Disable support for comments and trackbacks in post types
    foreach (get_post_types() as $post_type) {
        if (post_type_supports($post_type, 'comments')) {
            remove_post_type_support($post_type, 'comments');
            remove_post_type_support($post_type, 'trackbacks');
        }
    }
});

// Close comments on the front-end
add_filter('comments_open', '__return_false', 20, 2);
add_filter('pings_open', '__return_false', 20, 2);

// Hide existing comments
add_filter('comments_array', '__return_empty_array', 10, 2);

// Remove comments page in menu
add_action('admin_menu', function () {
    remove_menu_page('edit-comments.php');
});

// Remove comments links from admin bar
add_action('init', function () {
    if (is_admin_bar_showing()) {
        remove_action('admin_bar_menu', 'wp_admin_bar_comments_menu', 60);
    }
});

change any text

// Change text strings  http://codex.wordpress.org/Plugin_API/Filter_Reference/gettext

function my_text_strings( $translated_text, $text, $domain ) {
	switch ( $translated_text ) {
		case 'Related Products' :
			$translated_text = __( 'Check out these related products', 'woocommerce' );
			break;
	}
	return $translated_text;
}
add_filter( 'gettext', 'my_text_strings', 20, 3 );