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<?php $array = [0, 1, 2]; var_dump($array); foreach($array as &$v){ } foreach($array as $v){ } var_dump($array);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(3) { [0]=> int(0) [1]=> int(1) [2]=> int(2) } array(3) { [0]=> int(0) [1]=> int(1) [2]=> &int(1) }

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81.32 ms | 407 KiB | 5 Q