Contributing

Contributes must follow these rules:

• no vendors code, no namespaces, no global variables, new functions nor new classes (yes, I know, it's hard)
• every PHP functionality must be included in the crystal.php file
• the PHP documentation is full of functionalities, use them!
• the code must be documented (one big file is hard to read, one big undocumented source is impossible to read)
• every pull request must be documented
• PECL extensions are allowed only if the existence is checked using extension_loaded and if the functionality doesn't have side effects but adds functionalities or improves the existing features