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Frameworks also exist for back-end code. We tend not to use major back-end frameworks at Punchmark, since we’ve built most of our back end from scratch to better serve our own needs, but some popular PHP frameworks include Laravel, CodeIgniter, and Symfony. Frameworks like these can offer built-in session tools, cache, user authentication, and testing functionality.
If you want to know more about frameworks that we use at Punchmark, let me know in the comments!