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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 0; $b = $a++; var_dump($a); var_dump($b); echo "--------\n"; $a = 0; $b = ++$a; var_dump($a); var_dump($b);
based on hEB9p
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
int(1) int(0) -------- int(1) int(1)
Output for hhvm-3.10.0

Process exited with code 153.