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run code in 150+ php & hhvm versions
Bugs & Features
<?php $this[5] = 42; var_dump($this); $this->$a = 2;
Output for 7.1.0
Fatal error: Uncaught Error: Using $this when not in object context in /in/8RS6k:2 Stack trace: #0 {main} thrown in /in/8RS6k on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.14
array(1) { [5]=> int(42) } Fatal error: Uncaught Error: Using $this when not in object context in /in/8RS6k:4 Stack trace: #0 {main} thrown in /in/8RS6k on line 4
Process exited with code 255.
Output for hhvm-3.12.0
array(1) { [5]=> int(42) } Fatal error: $this is null in /in/8RS6k on line 4
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.6.28
array(1) { [5]=> int(42) } Fatal error: Using $this when not in object context in /in/8RS6k on line 4
Process exited with code 255.
Output for 5.0.4 - 5.0.5
array(1) { [5]=> int(42) } Notice: Undefined variable: a in /in/8RS6k on line 4 Fatal error: Using $this when not in object context in /in/8RS6k on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.3
array(1) { [5]=> int(42) } Notice: Undefined variable: a in /in/8RS6k on line 4 Fatal error: Using $this when not in object context in /in/8RS6k on line 4
Process exited with code 255.
Output for 4.3.0 - 4.4.9
array(1) { [5]=> int(42) } Notice: Undefined variable: a in /in/8RS6k on line 4