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<?php $m = [0, 11, 50, 50, 11, 0, 0]; foreach ($m as $k => $v) { if ($v == 0) { unset($m[$k]); } } var_dump($m);
Output for 7.1.25 - 7.1.28, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(4) { [1]=> int(11) [2]=> int(50) [3]=> int(50) [4]=> int(11) }

preferences:
123.98 ms | 1414 KiB | 4 Q