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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1,"","1"," ",NULL); for($i=0;$i<5;$i++) echo var_dump(isset($arr[$i]))." >> "; echo var_dump(isset($adf));
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bool(true) >> bool(true) >> bool(true) >> bool(true) >> bool(false) >> bool(false)