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@ 2016-10-15T12:03:06Z

<?php
class Tag {};
$setTags = [];
function setTags(array $tags, &$setTags)
{
    array_map(
        function (Tag $tag)
        {
            $setTags[] = $tag;
        },
        $tags
    );
}

var_dump($setTags);
setTags(
    [
        new Tag(),
        new Tag(),
        new Tag(),
        new Tag(),
    ],
    $setTags
);
var_dump($setTags);

Output
Performance
VLD
References
Branches

array_map: documentation ( source)
var_dump: documentation ( source)

preferences:dark modelive preview

52.98 ms | 402 KiB | 5 Q