php - storing and echoing session data in different pages -


i coding type of donation system minecraft server , understand need session temporarily store data donator submitted in form echo later. lets donator's username mister_fix , rank wants purcahse builder, processor script gives him right link, pay rank, prevent scam want check ip, (im not going here) , submitted in form, way ill sure him submitted form , ill able give him rank. need store submitted in session, when put 

session_start();

tag in script, try echo $_session['username']; on different page comes blank, solution that?

session_start(); needs on pages (in beginning) when you're calling session info


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