3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump( null ?? 'thing' ); echo '2'; var_dump( false ?? 'thing' ); var_dump( '' ?? 'thing' ); var_dump( ' ' ?? 'thing' ); var_dump( 0 ?? 'thing' ); var_dump( [] ?? 'thing' );
Output for 7.0.0 - 7.2.0
string(5) "thing" 2bool(false) string(0) "" string(1) " " int(0) array(0) { }
Output for 5.3.19 - 5.6.28
Parse error: syntax error, unexpected '?' in /in/cTdEv on line 3
Process exited with code 255.