3v4l.org

run code in 300+ PHP versions simultaneously
<?php $path = null; $list = array('k1' => 'f1.txt', 'k2' => 'f2.txt', 'k3' => 'f3.txt', 'k4' => 'f4.txt'); //$mapping = array_map(function($item) use ($path) { return $path ? $path . $item : $item; }, $list); $pfxFilePath = 'pfxFilePath'; $passFilePath = 'passFilePath'; array_walk($list, function(&$item, $i) use ($pfxFilePath, $passFilePath) { $item.= $pfxFilePath . $passFilePath; }); var_dump($list);
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
array(4) { ["k1"]=> string(29) "f1.txtpfxFilePathpassFilePath" ["k2"]=> string(29) "f2.txtpfxFilePathpassFilePath" ["k3"]=> string(29) "f3.txtpfxFilePathpassFilePath" ["k4"]=> string(29) "f4.txtpfxFilePathpassFilePath" }
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(4) { ["k1"]=> string(29) "f1.txtpfxFilePathpassFilePath" ["k2"]=> string(29) "f2.txtpfxFilePathpassFilePath" ["k3"]=> string(29) "f3.txtpfxFilePathpassFilePath" ["k4"]=> string(29) "f4.txtpfxFilePathpassFilePath" }

preferences:
173.43 ms | 402 KiB | 291 Q