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<?php trait DynamicDefinition { public function __call($name, $args) { if (is_callable($this->$name)) { return call_user_func($this->$name, $args); } else { throw new \RuntimeException("Method {$name} does not exist"); } } public function __set($name, $value) { $this->$name = is_callable($value)? $value->bindTo($this, $this): $value; } } class Foo { use DynamicDefinition; private $privateValue = 'I am private'; } $foo = new Foo; $foo->bar = function() { return $this->privateValue; }; // prints 'I am private' print $foo->bar();
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Creation of dynamic property Foo::$bar is deprecated in /in/k9GMt on line 15 I am private
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
I am private
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/k9GMt on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/k9GMt on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/k9GMt on line 3
Process exited with code 255.

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