note 114546 added to functions.anonymous

Haven't seen it documented anywhere but PHP 5.4 now allows accessing private and protected members of an object if it's passed into a lambda function: <?php class Scope { protected $property = 'default'; // or even // private $property = 'default'; public function run() { $self = $this; $func = function() use ($self) { $self->property = 'changed'; }; $func(); var_dump($this->property); } } $scope = new Scope(); $scope->run(); ?> When running the file under PHP 5.3 you get the following error message: * Fatal error: Cannot access protected property Scope::$property in ./file.php on line 11 PHP 5.4, however, does not complain and outputs "changed" as expected. Not sure why it's like that but I suspect it has something to do with 5.4 supporting passing $this into lambda functions. Speaking of which, something to remember is that the following won't work: <?php $func = function() use ($this) { $this->property = 'changed'; }; ?> The error you'll get is: * PHP Fatal error: Cannot use $this as lexical variable in ./file.php on line 9 You have to totally omit the use statement for it to work: <?php $func = function() { $this->property = 'changed'; }; ?> ---- Server IP: 72.52.91.14 Probable Submitter: 72.52.91.14 ---- Manual Page -- http://php.net/manual/en/functions.anonymous.php Edit -- https://master.php.net/note/edit/114546 Del: integrated -- https://master.php.net/note/delete/114546/integrated Del: useless -- https://master.php.net/note/delete/114546/useless Del: bad code -- https://master.php.net/note/delete/114546/bad+code Del: spam -- https://master.php.net/note/delete/114546/spam Del: non-english -- https://master.php.net/note/delete/114546/non-english Del: in docs -- https://master.php.net/note/delete/114546/in+docs Del: other reasons-- https://master.php.net/note/delete/114546 Reject -- https://master.php.net/note/reject/114546 Search -- https://master.php.net/manage/user-notes.php