Regex matching/text search

[Techno]

Kind of urgent.

Basically I want to find all matches of a particular sequence and extract the values for that and keep going/doing this search until no matches found.

I want to find text in between the tags:

<#some text#>


and get me all matches for me and with the ability to replace the text.

so if I had this string:

hi my name is <#name#> and I like <#userLikes#>


I want to get the tags in that text and replace the tags in the original text with whatever I want

Thanks