PHP - Differens

PHP extractor

The PHP extractor maps tree-sitter PHP CST nodes to canonical concepts. Class, method, and function names come from the standard name field; property names come from the property element’s name field, keeping the $.

Detected concepts

tree-sitter node type	Canonical concept
`class_declaration`	Class
`interface_declaration`	Interface
`trait_declaration`	Trait
`enum_declaration`	Enum
`method_declaration`	Method
`function_definition`	Function
`namespace_definition`	Namespace
`namespace_use_declaration`	Import
`property_declaration`	Variable
`formal_parameters`	Parameters
`function_call_expression`	CallExpression
`array_creation_expression`	ArrayLiteral

Example

Renaming a method:

<?php
// old.php
class Counter { function total($n) { return $n + 1; } }

<?php
// new.php
class Counter { function sum($n) { return $n + 1; } }

Running differens old.php new.php:

~ renamed method `total` to `sum` in class `Counter`

Known limitations

Heredoc and nowdoc bodies are string literals; changes inside them report as value changes, not line edits.
Attribute syntax is parsed structurally; attribute argument edits report as value changes.