PhpDepend

Extracts list of dependencies (classes, interfaces & traits) from PHP file or code snippet.

Installation

Download a latest package or use Composer:

composer require czproject/phpdepend

PhpDepend requires PHP 8.0 or later and enabled Tokenizer extension (enabled by default from PHP 4.3.0).

Usage

$phpdepend = new CzProject\PhpDepend\PhpDepend;

// file parsing
$phpdepend->parseFile('MyClass.php');

// code snippet parsing
$source = file_get_contents('MyClass.php');
$phpdepend->parse($source);

// getting result
$phpdepend->getClasses(); // returns list of defined classes, interfaces & traits
$phpdepend->getDependencies(); // returns list of required classes, interfaces & traits

Recognized dependencies in PHP code:

• inherited classes (extends ParentClass)
• implemented interfaces (implements InterfaceA, InterfaceB)
• used traits (class MyClass { use Trait; })
• classes of created instances (new Object())
• static classes (StaticClass::staticMethod(), StaticClass::$staticProperty)

Ignored dependencies:

• self:: - self means "this class" → useless (no dependency, class is defined in same file)
• parent:: - parent class is specified in extends
• static:: - static is dynamic-self → means "this class", parent or descendant (if exists)

Recognized defined classes (output of $phpdepend->getClasses()):

• defined classes (class MyClass)
• defined interfaces (interface MyInterface)
• defined traits (trait MyTrait)

Example

<?php
$phpdepend = new CzProject\PhpDepend\PhpDepend;
$phpdepend->parse('
<?php
	class Greeting implements IGreeting
	{
		public function say($name)
		{
			if (!$name) {
				throw new InvalidArgumentException("Invalid name");
			}
			return "Hello $name";
		}
	}

	$greeting = new Greeting;
	$greeting->say("John");
');

var_dump($phpdepend->getClasses());
/* Output:
array (1) {
	'Greeting'
}
*/

var_dump($phpdepend->getDependencies());
/* Output:
array (3) {
	'IGreeting',
	'InvalidArgumentException',
	'Greeting',
}
*/

---

License: New BSD License
Author: Jan Pecha, https://www.janpecha.cz/