Online PHP editor | output for 6sKtS

@ 2021-06-17T20:15:06Z

<?php

$pattern = "/^([A-Z\d]+)\[(?|(\d+)-(\d+)|([A-Z])-([A-Z]))]|([A-Z\d]+)$/";
$strings = [
    "SW[1-3]",
    "LD1[A-D]",
    "LD1"
];

foreach ($strings as $s) {
    if (preg_match($pattern, $s, $match)) {
        if (array_key_exists(4, $match)) {
            echo $match[4] . PHP_EOL;
            continue;
        }
        foreach (range($match[2], $match[3]) as $m) {
            echo $match[1] . $m . PHP_EOL;
        }
    }
}

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.26, 8.4.1 - 8.4.13: SW1 SW2 SW3 LD1A LD1B LD1C LD1D LD1
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 SW1 SW2 SW3 LD1A LD1B LD1C LD1D LD1

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