You should now be able to protect your pages using PHP/MySQL authentication. Once you get into it, you'll see for yourself how valuable this can be. You may also have learned some precautions to take when querying a database. Basic rule: Always prepare variables before using them in SQL queries.
I could have included all of this functionality in the tutorial, but if I did that, there wouldn't be any fun left for you. As always, feel free to ask questions or discuss this article in the
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Security and Sessions in PHP
