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run code in 300+ PHP versions simultaneously

@ 2017-07-13T14:14:31Z

<?php
function zmien_znaki_na_liczbe($znaki) {
 
$znaki_na_liczby = array(
        'aąĄ' => 1,
        'b' => 2,
        'cćĆ' => 3,
        'd' => 4,
        'eęĘ' => 5,
        'f' => 6,
        'g' => 7,
        'h' => 8,
        'i' => 9,
        'j' => 10,
        'k' => 11,
        'lłŁ' => 12,
        'm' => 13,
        'nńŃ' => 14,
        'oóÓ' => 15,
        'p' => 16,
        'r' => 17,
        'sśŚ' => 18,
        't' => 19,
        'u' => 20,
        'w' => 21,
        'y' => 22,
        'zżźŻŹ' => 23,
        'x' => 24,
        'q' => 25,
        'v' => 26,
    );
    $znaki = mb_strtolower($znaki);
        foreach($znaki_na_liczby as $litery => $liczba) {
            $znaki = str_ireplace(str_split($litery), $liczba, $znaki);
        }
        return $znaki;
    }

echo zmien_znaki_na_liczbe('ąęłóżź');

Output for 5.6.38, 7.3.23 - 7.3.33, 7.4.11 - 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: 11151212151512231223
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 11151212151512231223
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.10: ąęłóżź

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152.86 ms | 402 KiB | 217 Q