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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(is_numeric('1234')); var_dump(is_numeric(1234)); var_dump(is_numeric('string')); var_dump(is_numeric('string1234')); var_dump(is_numeric('1234string'));
based on QocLk
Output for 4.3.0 - 7.2.0
bool(true) bool(true) bool(false) bool(false) bool(false)