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<?php function checkArray($array) { return count($array) === 0 ? "" : $array; } $yourArray = array('arr1','arr2',null,'arr4','arr5'); $yourArray = checkArray($yourArray); var_dump($yourArray);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(5) { [0]=> string(4) "arr1" [1]=> string(4) "arr2" [2]=> NULL [3]=> string(4) "arr4" [4]=> string(4) "arr5" }