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@ 2019-09-27T09:57:02Z

<?php

$m = [
    'foo' => 'aaa',
    'bar' => 'bbb',
    'baz' => 'ccc',
];

$v = 'bbb';
var_dump(in_array($v, $m, true));

$v = 'zzz';
var_dump(in_array($v, $m, true));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
in_array: documentation ( source)

preferences:dark modelive preview

56.31 ms | 402 KiB | 5 Q