PHP is a scripting language, a bit like JavaScript, however, instead of being executed by the users browser, it is interpreted by the web server where the website resides, which produces HTML that the end user sees. It is known as a server-side scripting language. Again, as with JavaScript, it can be embedded into HTML and used to make a web page more dynamic. It can also be used to interact with a database such as, MySQL, PostgreSQL or Oracle, to store and retrieve content.

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