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@ 2014-03-06T07:34:30Z

<?php
$foo = null;
$attributes = ['class' => 'control-label'];

if ($foo) {
    $attributes = array_merge($foo, $attributes);
}

var_dump($attributes);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_merge: documentation ( source)

preferences:dark modelive preview

40.04 ms | 402 KiB | 5 Q