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run code in 300+ PHP versions simultaneously
<?php $al = $al2 = [ 'users' => [ 0 => 'e401fe5f-643e-46e3-abac-cbe32ae38430', ], 'remote' => false, 'public' => false, ]; $v = [ '50fcf113-04de-49fc-9ed4-9e8a8d32b24f', '33fcf113-01cc-49fc-1cc1-9ed6e7d2b2cc', 7777 ]; $k = 'users'; $al[$k] = array_values($al[$k]) + $v; $al2[$k] += array_merge($al2[$k], $v); echo('Current:' . PHP_EOL . PHP_EOL); var_dump($al); echo(PHP_EOL . 'Before:' . PHP_EOL); var_dump($al2);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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
Current: array(3) { ["users"]=> array(3) { [0]=> string(36) "e401fe5f-643e-46e3-abac-cbe32ae38430" [1]=> string(36) "33fcf113-01cc-49fc-1cc1-9ed6e7d2b2cc" [2]=> int(7777) } ["remote"]=> bool(false) ["public"]=> bool(false) } Before: array(3) { ["users"]=> array(4) { [0]=> string(36) "e401fe5f-643e-46e3-abac-cbe32ae38430" [1]=> string(36) "50fcf113-04de-49fc-9ed4-9e8a8d32b24f" [2]=> string(36) "33fcf113-01cc-49fc-1cc1-9ed6e7d2b2cc" [3]=> int(7777) } ["remote"]=> bool(false) ["public"]=> bool(false) }

preferences:
115.41 ms | 2132 KiB | 4 Q