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<?php $arr1 = [ 0 => [ 'id' => 1, 'name' => 'Peter', ], 1 => [ 'id' => 2, 'name' => 'John', ] ]; $arr2 = [ 0 => [ 'id' => 1, 'surname' => 'Newman', ], 1 => [ 'id' => 2, 'surname' => 'Cena', ] ]; $finalArr = array_map(function($x) use ($arr2) { foreach($arr2 as $b) { if ($x["id"] === $b["id"]) { return array_merge($x, $b); } } return $x; }, $arr1); var_dump($finalArr);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
array(2) { [0]=> array(3) { ["id"]=> int(1) ["name"]=> string(5) "Peter" ["surname"]=> string(6) "Newman" } [1]=> array(3) { ["id"]=> int(2) ["name"]=> string(4) "John" ["surname"]=> string(4) "Cena" } }
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 array(2) { [0]=> array(3) { ["id"]=> int(1) ["name"]=> string(5) "Peter" ["surname"]=> string(6) "Newman" } [1]=> array(3) { ["id"]=> int(2) ["name"]=> string(4) "John" ["surname"]=> string(4) "Cena" } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/e9jRE on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/e9jRE on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/e9jRE on line 3
Process exited with code 255.

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