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run code in 200+ php & hhvm versions
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<?php $b ='123456'; $vvv = is_numeric($b); var_dump(0 && '0');
based on 86BCv
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
bool(false)