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<?php $a = ['read' => [1,2]]; $b = ['read' => [2,3]]; $c = array_replace($b, $a); foreach ($c as $key => $value) { if (is_array($value) && isset($b[$key])) { echo 1; $c[$key] = array_unique(array_replace($value, $b[$key])); } elseif (empty($value) && isset($b[$key])) { $c[$key] = $b[$key]; } } var_dump($c);
Output for 7.1.0 - 7.1.20, 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 - 8.3.4, 8.3.6
1array(1) { ["read"]=> array(2) { [0]=> int(2) [1]=> int(3) } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 1array(1) { ["read"]=> array(2) { [0]=> int(2) [1]=> int(3) } }

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150.91 ms | 402 KiB | 160 Q