Online PHP editor | output for uigai

@ 2015-04-30T13:18:49Z

<?php

$string = 'moopuuuooze';
// The regex matches any character -> . in a capture group ()
// plus as much identical characters as possible following it -> \1+
$pattern = '/(.)\1+/';

preg_match_all($pattern, $string, $m);
// sort by their length
// sort by their length

usort($m[0], 'length_sort');

function length_sort($a, $b) {
    return (strlen($a) < strlen($b)) ? 1 : -1;
}

echo "Longest sequence: " . $m[0][0] . "\n";

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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: Longest sequence: uuu
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 Longest sequence: uuu

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