Remove whitespace from HTML

Answer 1

if you got 8 bit ASCII, is will remove them and keep the chars in range 128-255

 $text = preg_replace('/[\x00-\x1F\xFF]/', " ", $text );

If you have a UTF-8 encoded string is will do the work

$text = preg_replace('/[\x00-\x1F\x7F]/u', '', $text);

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