3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $test = array(); $test['a'] = 123; var_dump( (isset($test['a']) ? $test['a'] : isset($test['b'])) ? $test['b'] : "default" );
based on jsJR2
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
Notice: Undefined index: b in /in/jZMaI on line 11 NULL