3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function magic($p, $q) { if ($q == 0) { var_dump('$p: ' . $p); var_dump('$q: ' . $q); return $p; } else { var_dump('$p: ' . $p); var_dump('$q: ' . $q); return magic($q, $p % $q); } } var_dump(magic(1024, 1000));
based on ODDQB
Output for 4.3.0 - 7.2.0
string(8) "$p: 1024" string(8) "$q: 1000" string(8) "$p: 1000" string(6) "$q: 24" string(6) "$p: 24" string(6) "$q: 16" string(6) "$p: 16" string(5) "$q: 8" string(5) "$p: 8" string(5) "$q: 0" int(8)