replace characters that are hidden in text

Question

How to remove   (that are hidden) and SPACES in below text but

• hold UNICODE characters
• hold
tag

Answer 1

Not tested, but if you use something like:

$string = preg_replace("/\s/",'',$string);

That should remove all spaces.

UPDATE

To remove all spaces and   references, use something like:

$string = preg_replace("/\s| /",'',$string);

UPDATE 2

Try this:

$string = html_entity_decode($string);

$string = preg_replace("/\s/",'',$string);

echo $string;

Forgot to say, reconvert the html entities so add this after the replacement:

htmlentities($string);