3v4l.org

run code in 200+ php & hhvm versions
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<?php $lvl = 0; $newLvl = $lvl++; var_dump($lvl, $newLvl);
Output for 4.3.0 - 5.6.40, hhvm-3.10.1 - 3.22.0, 7.0.0 - 7.3.5
int(1) int(0)