How to match the following regex php

Question

I want to write a regex to match only the first and last strings below. So far, I got this regex

%[\w]+@\{[\w"]+\}%

but it wont match anything:

%adasda@{"asdas":"asdas"}% // should match
5% ashdgasjhdgas % //no match
5%ahsdjhasj % // no match
%asdasdas% //should match

Answer 1

希望对您有所帮助：

^%\w+(@[\{"\w\}:]+)*%$