I have 2 websites in same server. But sometimes when the 1st website changes the session_id() using session_regenerate_id() then the 2nd website still follow the 1st website current session_id(). No problem when using different browser. But have this problem when using tab or new window in IE / Mozzila browser....
Non trovo alcun articolo che ti spieghi bene il perche', e non ricordo dove ho letto il suo utilizzo