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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(ctype_digit("61")); var_dump(ctype_digit(612));
Output for 4.3.10 - 4.4.9, 5.0.3 - 7.1.10
bool(true) bool(true)
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.2
bool(true) bool(false)