3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { private $p = 'secret'; } $o = new x; $f = function(){ return $this->p; }; $g = $f; echo $f->__invoke(),"\n"; echo $f(),"\n"; echo $f->call($o);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
Fatal error: Uncaught Error: Using $this when not in object context in /in/hSGvj:6 Stack trace: #0 /in/hSGvj(8): {closure}() #1 /in/hSGvj(8): Closure->__invoke() #2 {main} thrown in /in/hSGvj on line 6
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Using $this when not in object context in /in/hSGvj on line 6
Process exited with code 255.
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