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@ 2017-05-19T15:39:25Z

<?php

$a1 = array("1a");
$a2 = array("1a", "2a");

var_dump(array_diff($a1, $a2));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_diff: documentation ( source)

preferences:dark modelive preview

67.06 ms | 402 KiB | 5 Q