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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(ctype_digit('abc'),ctype_digit('123'),ctype_digit('0123'), ctype_digit('0'), ctype_digit('000000'));
Output for 4.3.0 - 7.2.0
bool(false) bool(true) bool(true) bool(true) bool(true)