3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function display($a, $b) { echo $a; echo ' '; echo $b; } $i = 0; ${"sR{$i}S1"} = "hello"; ${"nR{$i}S1P"} = "world"; display(${"sR{$i}S1"}, ${"nR{$i}S1P"});
based on o8Zuc
Output for 4.3.0 - 7.2.0
hello world