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<?php function arraySum(array $array) { $stack = [$array]; $sum = 0; while (($items = array_pop($stack))) { foreach ($items as $item) { if (is_array($item)) { $stack[] = $item; } else { $sum += $item; } } } return $sum; } echo arraySum([1, [1, 1], [1, [1, 1]]]);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 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
6
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 6
preferences:
163.67 ms | 402 KiB | 161 Q