I do this. But i want regex once, i don't want use regex twice
#include <Array.au3>
$string = "number=1" & @CRLF & _
"number=2" & @CRLF & _
"number=3" & @CRLF & _
"selector" & @CRLF & _
"number=4" & @CRLF & _
"number=5" & @CRLF & _
"number=6" & @CRLF & _
"number=7"
$regex= StringRegExp(StringRegExp($string,"selector([^\h]+)",1)[0],"(\d+)",3)
_ArrayDisplay($regex)