Chapter 15. CONTROLLING ACCESS TO YOUR SITE

In the last chapter, you learned how to insert information into a database and retrieve it. Once you have created a database record, you need a way to update it or delete it when it's no longer required. The principles behind updating and deleting are very similar to retrieving and displaying records. To update a record, you need to display its existing details in a form ready for editing, and to delete a record, you display sufficient information to confirm that you want to consign it to cyber oblivion.

Updating and deleting database records is something that should be entrusted only to authorized people, so I'm going to kill two birds with one stone in this chapter by showing you how to create a user ...

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