Online PHP editor | output for d4TAW

@ 2017-12-19T12:19:40Z

<?php

$version = '5.5.58-0ubuntu0.14.04.1';
echo '<pre>';

var_dump(preg_match('/^(?P<major>\d+)(?:\.(?P<minor>\d+)(?:\.(?P<patch>\d+))?)?/', $version, $versionParts));
if (!preg_match('/^(?P<major>\d+)(?:\.(?P<minor>\d+)(?:\.(?P<patch>\d+))?)?/', $version, $versionParts)) {
    echo "RegEx failed on " . $version . PHP_EOL;

} else {
    echo "RegEx extracted version parts" . PHP_EOL;
    var_dump($versionParts);
}

function errorValue($error)
{
    $value = constant($error);
    
    return $value !== null ? $value : $error;
}

$errors = array(
    'PREG_NO_ERROR', 
    'PREG_INTERNAL_ERROR', 
    'PREG_BACKTRACK_LIMIT_ERROR', 
    'PREG_RECURSION_LIMIT_ERROR', 
    'PREG_BAD_UTF8_ERROR', 
    'PREG_BAD_UTF8_OFFSET_ERROR', 
    'PREG_JIT_STACKLIMIT_ERROR'
);

$pregErrors = array_combine(
    array_map('errorValue', $errors),
    $errors
);

echo $pregErrors[preg_last_error()] . PHP_EOL;
echo '</pre>';

Output for 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: <pre>int(1) RegEx extracted version parts array(7) { [0]=> string(6) "5.5.58" ["major"]=> string(1) "5" [1]=> string(1) "5" ["minor"]=> string(1) "5" [2]=> string(1) "5" ["patch"]=> string(2) "58" [3]=> string(2) "58" } PREG_NO_ERROR </pre>
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 <pre>int(1) RegEx extracted version parts array(7) { [0]=> string(6) "5.5.58" ["major"]=> string(1) "5" [1]=> string(1) "5" ["minor"]=> string(1) "5" [2]=> string(1) "5" ["patch"]=> string(2) "58" [3]=> string(2) "58" } PREG_NO_ERROR </pre>

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