3v4l.org

run code in 200+ php & hhvm versions
<?php $a=['foo'=>123]; echo "lalala {$a['foo']} bar";
based on dKU7d
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.28 - 7.2.8
lalala 123 bar