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<?php class Foo { public $name; public function __construct($name) { $this->name = $name; } } class Bar { private $foo; public function __construct(Foo $foo = null, $default = 'default') { $this->foo = $foo ?: new Foo($default); } public function getFooName() { return $this->foo->name; } } $foo = new Foo('John'); $bar = new Bar($foo); echo $bar->getFooName(), PHP_EOL; // John $bar = new Bar(); echo $bar->getFooName(), PHP_EOL; // default $bar = new Bar(null, 'something'); echo $bar->getFooName(), PHP_EOL; // something
Output for git.master_jit, git.master, rfc.property-hooks
John default something

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