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<?php $defaults = ['ui' => ['editable' => true]]; var_dump(array_merge_recursive([ 'ui' => ['editable' => false], ], $defaults));
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
array(1) { ["ui"]=> array(1) { ["editable"]=> array(2) { [0]=> bool(false) [1]=> bool(true) } } }
preferences:
67.9 ms | 406 KiB | 5 Q