[PHP] Session name length

["Miguel J. Jiménez"]

How much long can be the session name? What is the limit? 10, 40, 255 
alphanumeric chars? or what?
Thanks...

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Miguel J. Jim�nez
ISOTROL, S.A. (�rea de Internet)
Avda. Innovaci�n n�1, 3� - 41020 Sevilla (ESPA�A)
mjjimenez AT isotrol DOT com   ---   http://www.isotrol.com
ICQ# 12670750
TLFNO. 955036800 ext. 111
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