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run code in 300+ PHP versions simultaneously

@ 2017-11-02T11:17:15Z

<?php

function _hex2bin($hex)
{
    $hex = strtoupper($hex);
    $hexLen = strlen($hex);
    $bin = [];
    for ($i = 0; $i < $hexLen; $i++) {
        $char = $hex[$i];
        if ($char == '0') $bin[] = "0000";
        else if ($char == '1') $bin[] = "0001";
        else if ($char == '2') $bin[] = "0010";
        else if ($char == '3') $bin[] = "0011";
        else if ($char == '4') $bin[] = "0100";
        else if ($char == '5') $bin[] = "0101";
        else if ($char == '6') $bin[] = "0110";
        else if ($char == '7') $bin[] = "0111";
        else if ($char == '8') $bin[] = "1000";
        else if ($char == '9') $bin[] = "1001";
        else if ($char == 'A') $bin[] = "1010";
        else if ($char == 'B') $bin[] = "1011";
        else if ($char == 'C') $bin[] = "1100";
        else if ($char == 'D') $bin[] = "1101";
        else if ($char == 'E') $bin[] = "1110";
        else if ($char == 'F') $bin[] = "1111";
        else $bin[] = "0000";
    }
    
    return implode("", $bin);
}

echo _hex2bin("152F302436152F302435152F302434152F302433152F302433");

Output for 7.0.0 - 7.0.27, 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: 00010101001011110011000000100100001101100001010100101111001100000010010000110101000101010010111100110000001001000011010000010101001011110011000000100100001100110001010100101111001100000010010000110011
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 00010101001011110011000000100100001101100001010100101111001100000010010000110101000101010010111100110000001001000011010000010101001011110011000000100100001100110001010100101111001100000010010000110011

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