Web software for add deleting updating data

04-Aug-2019 05:34

As I mentioned briefly in Chapter 3: Introducing PHP, you should use UTF-8 encoded text in your web sites to maximize the range of characters that your users will have at their disposal when filling in forms on your site.

By default, when PHP connects to My SQL, it once again uses the simpler ISO-8859-1 encoding instead of UTF-8.

It’s important to understand how these will fit together.

The whole idea of a database driven web site is to allow the content of the site to reside in a database, and for that content to be pulled from the database dynamically to create web pages for people to view with a regular web browser.

We have two powerful tools at our disposal: the PHP scripting language and the My SQL database engine.

This warning message is automatically generated by PHP if it's configured to display errors.

These detailed errors can be invaluable tools for diagnosing problems with your code during development.

Let's say you want to work with the joke database you created in Chapter 2: Introducing My SQL. If your My SQL server is up and running and everything works the way it should, you should see the message indicating success in the figure below.

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If PHP is unable to connect to your My SQL server, or if the username and password you provided are incorrect, you'll instead see a similar screen to that in the figure below.

To make sure your error handling code is working properly, you might want to misspell your password intentionally to test it out.