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<?php $explicit = [-10 => true, true, true]; $fill = array_fill(-10, 3, true); $push = [-10 => true]; $push[] = true; $push[] = true; var_dump($explicit, $fill, $push);
based on mOXbf
Output for 8.0.0alpha1 - rc2
array(3) { [-10]=> bool(true) [-9]=> bool(true) [-8]=> bool(true) } array(3) { [-10]=> bool(true) [-9]=> bool(true) [-8]=> bool(true) } array(3) { [-10]=> bool(true) [-9]=> bool(true) [-8]=> bool(true) }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.23, 7.4.0 - 7.4.11
array(3) { [-10]=> bool(true) [0]=> bool(true) [1]=> bool(true) } array(3) { [-10]=> bool(true) [0]=> bool(true) [1]=> bool(true) } array(3) { [-10]=> bool(true) [0]=> bool(true) [1]=> bool(true) }