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[php] slugify

1)

return preg_replace(
            '/[^a-z0-9]/',
            '-',
            strtolower(trim(strip_tags(
                Transliterator::create('NFD; [:Nonspacing Mark:] Remove; NFC')->transliterate($string)
            )))
        );

2)

return trim(preg_replace('/-{2,}/', '-', preg_replace('/[^a-z0-9]/', '-', strtolower(strip_tags($title)))), '-');

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