3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $range = range(0, 20000); $var = join('', $range); var_dump(strlen($var)); $$var = 4; var_dump($$var);
based on cdS3m
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(88895) int(4)