Looking for some REGEX help in PHP

Question

I have a string:

[COLOR=gray]A bunch of text.[/COLOR]

And I would like to write a preg_replace that removes everything between "[COLOR=gray]" and "[/COLOR]" -- if it's possible to remove those tags as well, that's great, otherwise I can do a simple replace afterward.

Answer 1

$str  = 'dfgdfg[COLOR=gray]A bunch of text.[/COLOR]dfgdfgdfgfg';

$str1 = preg_replace('/\[COLOR=gray\].*\[\/COLOR\]/',"",$str);

echo $str1;

OR

if COLOR is not always gray

$str  = 'dfgdfg[COLOR=gray]A bunch of text.[/COLOR]dfgdfgdfgfg';

$str1 = preg_replace('/\[COLOR=\w+\].*\[\/COLOR\]/',"",$str);

echo $str1;