3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = array( 'a', 'b' ); echo current($x); $x = 'a'; echo current( (array)$x );
Output for 4.4.1, 5.1.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
aa
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 4.4.0, 4.4.2 - 5.0.5
Fatal error: Only variables can be passed by reference in /in/O3B3F on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Only variables can be passed by reference in /in/O3B3F on line 7