Wiktionary
as long as
conj. 1 (&lit as long as English) 2 (context idiomatic English) if, assuming (depending upon some condition or requirement). 3 (context idiomatic English) while, since.
Usage examples of "as long as".
For as long as I can remember, that was the greatest desire of my heart.
In fact, it rather appealed to him as long as it was openhearted and large-minded.
That night I cried like a baby, cried myself to sleep for the first time in as long as I could remember.