3v4l.org

run code in 300+ PHP versions simultaneously
<?php function initValueIfNotSet($target, $levels = array()) { //$merge = ['WorkRecord' => ['Hours' => '']]; $merge = []; for ($i = count($levels) - 1; $i >= 0; $i--) { $current = $levels[$i]; $merge = empty($merge) ? [$current => ''] : [$current => $merge]; } //return $target + $merge; return array_merge_recursive($target, $merge); } $user = ['Details' => ['Name' => 'Kokot'], 'WorkRecord' => ['Time' => []]]; var_dump($user); $user = initValueIfNotSet($user, ['WorkRecord', 'Time', 'Hours']); var_dump($user);
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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(2) { ["Details"]=> array(1) { ["Name"]=> string(5) "Kokot" } ["WorkRecord"]=> array(1) { ["Time"]=> array(0) { } } } array(2) { ["Details"]=> array(1) { ["Name"]=> string(5) "Kokot" } ["WorkRecord"]=> array(1) { ["Time"]=> array(1) { ["Hours"]=> string(0) "" } } }
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) { ["Details"]=> array(1) { ["Name"]=> string(5) "Kokot" } ["WorkRecord"]=> array(1) { ["Time"]=> array(0) { } } } array(2) { ["Details"]=> array(1) { ["Name"]=> string(5) "Kokot" } ["WorkRecord"]=> array(1) { ["Time"]=> array(1) { ["Hours"]=> string(0) "" } } }

preferences:
194.9 ms | 402 KiB | 290 Q