1. https://github.com/kamranahmedse/design-patterns-for-humans

    A collection of common design patterns done in PHP

  2. https://laconia.dev/

    Laconia is a project created by Tania Rascia to learn how to make a modern MVC framework from scratch without using any libraries or dependencies. Since Laconia has no external frameworks, it can be a helpful starting point for beginner PHP developers to learn the concepts of authentication, object-oriented architecture, Model-View-Controller concepts, routing, and creating a database schema.

  3. https://www.youtube.com/playlist?list=PLGLfVvz_LVvSX7fVd4OUFp_ODd86H0ZIY

    Learn: code, c++, python, java, php, mysql, javascript, js, html, css, go, ruby, sass, susy, objective c, swift, lua, c#, lisp, haskell, prolgo, scala, dart, jquery, handlebars, bootstrap, express, xampp, jade, MEAN stack, perl, groovy, rush, bash, typescript, erlang, elixir, f#, ES6, kotlin, crochet, r, clojure, arduino, crysal, julia, matlab, fortran, LaTeX, java in one video.

  4. https://github.com/PatrickLouys/no-framework-tutorial

    Create a PHP application without a framework

  5. https://auth0.com/blog/a-run-through-the-owasp-top-10/

    A tour through the OWASP Top 10 (most critical web application security risks).Official list here: https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project

  6. https://github.com/mikeerickson/phpunit-pretty-result-printer

    Extend the default PHPUnit Result Printer with a modern, pretty printer!

  7. https://paragonie.com/blog/2017/12/2018-guide-building-secure-php-software

    this seems to be a pretty comprehensive guild on how to solidify security around a PHP application. And with most things tech, the ideas presented here are applicable to many langs