youtube-dl change-name

<?php

// youtube-dl.exe --extract-audio --audio-format mp3 --audio-quality 0 --output "%(title)s.%(ext)s" https://www.youtube.com/playlist?list=

$chars = [
    'ą' => 'a',
    'ć' => 'c',
    'ę' => 'e',
    'ł' => 'l',
    'ó' => 'o',
    'ś' => 's',
    'ć' => 'c',
    'ń' => 'n',
    'ź' => 'z',
    'ż' => 'z',
    'Ą' => 'A',
    'Ć' => 'C',
    'Ę' => 'E',
    'Ł' => 'L',
    'Ó' => 'O',
    'Ś' => 'S',
    'Ć' => 'C',
    'Ń' => 'N',
    'Ź' => 'Z',
    'Ż' => 'Z',
];

$files = scandir('.');
foreach ($files as $file) {
    if (strpos($file, '.mp3')) {
        $renamed = str_replace(array_keys($chars), array_values($chars), $file);
        echo $file.' = '.$renamed.PHP_EOL;
        rename($file, $renamed);
    }
}