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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a='-123'; Echo (int)$a; If((int)$a) echo 'Hợp lệ';
based on iYZhFp
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
-123Hợp lệ