3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = '1,2,3,4,5,6,7,8,9'; var_dump( reset( explode( ',', $a ) ) );
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/4lJm2 on line 3 string(1) "1"
Output for 4.3.0 - 5.0.4, hhvm-3.12.0
string(1) "1"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/4lJm2 on line 3 string(1) "1"
Output for 5.0.5
Fatal error: Only variables can be passed by reference in /in/4lJm2 on line 3
Process exited with code 255.