3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class foo { 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"}; } function saluda(){ $this->a; echo $a; } } $foo = new foo(); $foo->saluda();
Output for 5.0.4 - 7.1.0
hello hi howdy howdy Notice: Undefined variable: a in /in/AA3TB on line 26
Output for 5.0.0 - 5.0.3
hello hi howdy howdy Notice: Undefined variable: a in /in/AA3TB on line 26
Output for 4.3.0 - 4.4.9
Notice: Undefined property: a in /in/AA3TB on line 25 Notice: Undefined variable: a in /in/AA3TB on line 26