3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [1,2,3]; $b = &$a; foreach($a as $v) {echo "$v\n"; unset($a[1]);}
based on ZJ35k
Output for hhvm-3.10.1 - 3.11.1, hhvm-3.13.2, hhvm-3.17.3, 7.0.0 - 7.2.0
1 2 3
Output for hhvm-3.12.14, hhvm-3.15.4

Process exited with code 137.
Output for 5.4.0 - 5.6.30
1 3
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/21pqm 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 '[' in /in/21pqm on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/21pqm on line 2
Process exited with code 255.