3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(current(array_flip('foo' => 'bar')));
Output for 7.0.0 - 7.1.6
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/W1Emu on line 2
Process exited with code 255.
Output for hhvm-3.11.1 - 3.17.3
Fatal error: Uncaught Error: syntax error, unexpected T_DOUBLE_ARROW, expecting ')' in /in/W1Emu:2 Stack trace: #0 {main}
Process exited with code 255.
Output for hhvm-3.10.1
Fatal error: syntax error, unexpected T_DOUBLE_ARROW, expecting ')' in /in/W1Emu on line 2
Process exited with code 255.
Output for 5.4.0 - 5.6.30
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/W1Emu on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /in/W1Emu on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_DOUBLE_ARROW in /in/W1Emu on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/W1Emu on line 2
Process exited with code 255.