$replace(STRING,substring,newstring)
STRING is the alphanumeric string that you want to check, substring is the alphanumeric string that you want to compare in the STRING, and newstring is what substring is replaced with in STRING.
Eg,
$replace(Hello,ell,all) would return this:
Hallo (the ell is replaced by all in Hello).
If you want to do further replacements, this is how it goes:
$replace(STRING,substring1,newstring1,substring2,newstring2,substringN,newstringN)
eg:
$replace(Welcome,el,al,om,il) returns this:
Walcilme
