Online PHP editor | output for tBnY6

@ 2018-05-24T13:20:15Z

<?php

function getWordsWithOnlySpecifedLetters(array $dictionary, $letters)
{
    $strSplit = preg_split('//u', $letters, null, PREG_SPLIT_NO_EMPTY);
    $strSplitLower = array_map('mb_strtolower', $strSplit);
    sort($strSplit);
    $result = [];
    foreach ($dictionary as $word) {
      if(mb_strlen($word) <= mb_strlen($letters)) {
        $wordSplit = preg_split('//u', $word, null, PREG_SPLIT_NO_EMPTY);
        sort($wordSplit);
        if (array_map('mb_strtolower', $wordSplit) === $strSplitLower) {
          $result[] = $word;
        }
      }
    }
    return $result;
}
$dictionary = ['apple', 'sample', 'api', 'pia', 'тоҷик'];
echo '<pre>' . print_r(getWordsWithOnlySpecifedLetters($dictionary, "aip"), true) . '</pre>';

Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/tBnY6 on line 5 Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/tBnY6 on line 11 Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/tBnY6 on line 11 <pre>Array ( [0] => api [1] => pia ) </pre>
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: <pre>Array ( [0] => api [1] => pia ) </pre>

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