$string = preg_replace('/m[^a-z]*y[^a-z]*s[^a-z]*p[^a-z]*a[^a-z]*c[^a-z]*e/i', 'test', $string);
//this filters out the work myspace with any thing in between the letters I want to //modify it to also match when a user uses the @ sign in replace of the a in myspace
