replace every thing inside ' '

[________]

Hi,
if I have a string like this:
$string = "Hello, 'user' and 'user2'!";
How do I then replace every thing inside the ' ' so that the string would look like this:
$string = "Hello 'user' and 'user2'!";
I want to keep the ' and add _ to both sides of the value in the middle of the '

Thanks!

[tuf-web_co_uk]

after some

'Searching On This Forum' (note for future reference!!)

i've found your answer, i should really know some basics about preg_replace by now, but never mind, heres what your looking for

<?
$string = "Hello 'user' and 'user2'!";
$string = preg_replace("/'([a-zA-Z0-9_]+)'/e", "_$1_", $string);
echo $string; // outputs 'Hello _user_ and _user2_!'
?>

hth