Encoding issue, coverting & to & for html using php

Question

I have a url in html:

I need to turn it into a string exactly as:

Answer 1

after string go through TinyMCE only this code help me

$string = iconv('UTF-8','cp1251',$string);
$string = str_replace(chr(160), chr(32), $string);
$string = iconv('cp1251','UTF-8',$string);