phpx manual

The language

phpx is a fork of phpscript that reverses the decisions standing between the runtime and code written for PHP. A class extends another and inherits its fields, methods, statics and constants; parent::__construct() chains, instanceof walks the chain, and a class may extend Exception, Error and the SPL throwables. A trait composes into a class, and insteadof and as settle what two of them disagree on. abstract refuses a new and refuses a concrete class that leaves a method to a child.

A property or a method declares private or protected and the runtime enforces it with php's own message. readonly admits one write. A constructor promotes its parameters. static::, new static and get_called_class() name the calling class. global binds a name to the global frame, stdClass exists and json_decode answers one.

The syntax follows: ?? and ??=, ?->, <=>, fn() =>, f(...$args), $obj::class, match, enum, destructuring, heredoc, named arguments and throw as an expression.

Packages

A composer vendor/ loads through vendor/autoload.php, which needs the autoloader's Closure::bind and the class map it builds. phpunit runs from its own source tree: five test files, data providers and #[TestWith] included, printing what php prints. Reflection reads attributes, the SPL structures and iterators answer, and a class may declare JsonSerializable.

Where it stands

phpx is experimental and the surface moves. It runs software phpscript refuses, and a program that runs today may meet a gap tomorrow: a throwable records no file or line, a trait declared in one included file is invisible to a class in another, and the bytecode engine hands any program with inheritance, traits or a non-public property to the interpreter.

The same generator writes this tree and the phpscript manual, each from what its own binary registers. Every page under here is the fork's inventory.