Check if filename contains Umlauts in php -

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is there way, check in php if filename has umlauts?

there's quick way this:

$s = 'äëüïö';  if (preg_match('/&[a-za-z]uml;/', htmlentities($s, ent_compat, 'utf-8'))) {     echo 'filename contains umlaut'; }

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