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<?php class foo { private $x; function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $val = "a"; echo $this->{$val}; // outputs "hello" echo "\n"; $val = "b"; echo $this->{$val}; // outputs "hi" echo "\n"; echo $this->val; //outputs "howdy" echo "\n"; echo $this->{"val"}; $this->setX(5); echo $this->getX(); } function setX($valorX){ $this->$x = $valorX; } function getX(){ return $this->$x; } } $foo = new foo();
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property foo::$a is deprecated in /in/7rTqE on line 6 Deprecated: Creation of dynamic property foo::$b is deprecated in /in/7rTqE on line 7 Deprecated: Creation of dynamic property foo::$val is deprecated in /in/7rTqE on line 8 hello hi howdy howdy Warning: Undefined variable $x in /in/7rTqE on line 28 Deprecated: Creation of dynamic property foo::$ is deprecated in /in/7rTqE on line 28 Warning: Undefined variable $x in /in/7rTqE on line 31 5

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