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@ 2017-07-08T16:32:36Z

<?php

var_dump(
    array_diff_key(
        ['a' => 'x', 'b' => 'y', 'c' =>'z'],
        ['d' => 'v', 'b' => 'w', 'm' => 'n']
    )
);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_diff_key: documentation ( source)

preferences:dark modelive preview

40.78 ms | 402 KiB | 5 Q