Does preg_replace() change my character set?

Question

I have the following piece of code which seems to be changing my character set.

     $html = \"à\";
     echo $html;  // result: à
     $html = preg_replace(         


        

Answer 1

I have the same problem. It is because of UTF8.

à is 0xc3a0 in UTF8. In PHP you can write like this: "\xc3\xa0".

With PCRE the /s match 0xa0 like it was ASCII "Non-breaking space".

You can use the u flag to resolve the problem.

$html = preg_replace("/\s/u", "", $html);