The Symfony documentation
A collection of samples that demonstrate how to call Google Cloud services from PHP.
Clean Code concepts adapted for PHP
sample code for several design patterns in PHP 7.4
SecLists is the security tester's companion. It's a collection of multiple types of lists used during security assessments, collected in one place. List types include usernames, passwords, URLs, sensitive data patterns, fuzzing payloads, web shells, and many more.
PHP Language Specification
Examples of using each Illuminate component in non-Laravel applications