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<?php $testArray = ['a' => ['b' => 'l'], 'c' => 'm', 'd' => ['n' => 'o']]; $actionArray = ['action' => ['b']]; function toUpperRecursive(array $arr) { foreach ($arr as $key => $val) { if (is_array($val)) { $newKey = strtoupper($key); $arr[$newKey] = toUpperRecursive($val); unset($arr[$key]); } elseif (is_string($val)) { // $arr[$key] = strtoupper($val); echo $val; } } return $arr; } echo "before:\n"; var_export($testArray); echo "after:\n"; var_export(toUpperRecursive($testArray));
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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
before: array ( 'a' => array ( 'b' => 'l', ), 'c' => 'm', 'd' => array ( 'n' => 'o', ), )after: lmoarray ( 'c' => 'm', 'A' => array ( 'b' => 'l', ), 'D' => array ( 'n' => 'o', ), )
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 before: array ( 'a' => array ( 'b' => 'l', ), 'c' => 'm', 'd' => array ( 'n' => 'o', ), )after: lmoarray ( 'c' => 'm', 'A' => array ( 'b' => 'l', ), 'D' => array ( 'n' => 'o', ), )
preferences:
219.13 ms | 402 KiB | 287 Q