Creating an Online Storefront in PHP, MySQL and Apache, Part 3

(Julie C. Meloni) As you might have guessed, the next item on the task list is to build that showtopic.php file to show the topics postings. Listing 21.5 does just that. In this listing, lines 36 check for the existence of a value for topic_id in the GET query string. Because you intend to show all

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