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<?php $params = [1,2,3]; function transform(array $params) { $references = []; foreach ($params as $key => $value) { $references[$key] = &$params[$key]; } unset($value); $value = "foo"; return $references; return $references; } var_dump($params); $params = transform($params); var_dump($params);
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) }
preferences:
155.09 ms | 404 KiB | 182 Q