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run code in 200+ php & hhvm versions
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<?php $val = null; var_dump(is_numeric($val)); if (!is_numeric($val) && !is_null($val)) { //var_dump('douda'); } else { //var_dump('dodo'); }
based on 87RDB
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0beta1
bool(false)