preg_replace does not work

[Anon]

It does not modify data. Why ???

$game="text (out (in1 in2) out2";
$variation="in";

echo $game. " <BR> \n";
echo " <BR> \n";

preg_replace("% $variation %x",'WW', $game);

echo $game. " <BR> \n";

[Anon]

You need to redefined the $game variable:

$game = preg_replace("% $variation %x","WW", $game);

That should work.

[Anon]

I don't know what your end application is, but you could also use the following:

$game = str_replace($variation, "WW", $game);