The Symfony PHP framework
The Console component eases the creation of beautiful and testable command line interfaces.
The HttpFoundation component defines an object-oriented layer for the HTTP specification.
The Finder component finds files and directories via an intuitive fluent interface.
The Debug component provides tools to ease debugging PHP code.
Give thanks (in the form of a GitHub ★) to your fellow PHP package maintainers (not limited to Symfony components)!
The CssSelector component converts CSS selectors to XPath expressions.
The VarDumper component provides mechanisms for walking through any arbitrary PHP variable. It provides a better dump() function that you can use instead of var_dump().
PPM is a process manager, supercharger and load balancer for modern PHP applications.