Helix Core is now P4 and Helix Swarm is now P4 Code Review. Learn more >>

Documentation | 2025.2

# Resources

P4 Code Review is built with a number of different technologies. As such it can be a bit of a challenge to ramp up on if you haven't done web development before. This section lists some of the best resources we've found for learning how to develop for P4 Code Review.

## jQuery

A free three hour course on jQuery basics. Highly recommended if you haven't used jQuery before. It also covers some JavaScript and CSS basics:

jQuery Learning Center

## JavaScript resources

A free, in-browser JavaScript course:

W3 Schools JavaScript Tutorial

## PHP resources

A free PHP tutorial:

W3 Schools PHP Tutorial

## Laminas Framework resources

P4 Code Review supports the Laminas component versions in the LICENSE.txt file, features and functions in the Laminas documentation that were introduced in later versions of Laminas will not work with P4 Code Review. The LICENSE.txt file is in the readme folder of your P4 Code Review installation.

- The documentation overview page for Laminas Framework:

  Laminas documentation

- Laminas tutorial that covers most of the basics:

  Laminas component tutorials

- Laminas Quick Start documentation:

  Laminas Quick Start documentation

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