3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump( ("abc")[-1] );
Output for 7.1.0
string(1) "c"
Output for 7.0.0 - 7.0.14
Notice: Uninitialized string offset: -1 in /in/otDa9 on line 4 string(0) ""
Output for hhvm-3.10.0 - 3.12.0
string(0) ""
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.6.28
Parse error: syntax error, unexpected '[' in /in/otDa9 on line 4
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 '[' in /in/otDa9 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/otDa9 on line 4
Process exited with code 255.