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@ 2015-11-01T12:02:22Z

<?php
$pinned = 1;
$fullTextEnabled = null;
$updateMode = 0;
        $attributes = [
            'pinned' => $pinned,
            'fullTextEnabled' => $fullTextEnabled,
            'updateMode' => $updateMode
        ];

        $diff = array_filter($attributes, 'is_null');
        
        var_dump($diff);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_filter: documentation ( source)

preferences:dark modelive preview

26.06 ms | 402 KiB | 5 Q