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What is the difference between session_register and $_session?

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What is the difference between session_register and $_session?
posted Sep 25, 2014 by Vrije Mani Upadhyay

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1 Answer

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We can use either
session_register or $_SESSION for registering session variable in php.

Find below the difference between both of them.

session_register() is a function and $_SESSION is a superglobal array.

session_register() is used to register a session variable and it works only when register_globals is turned on. (Turning ON register_globals will create mesh-ups, but some applications (e.g OScommerce) requires turning ON of register_globals)
But $_SESSION works even when register_globals is turned off.

If session_start() was not called before session_register() is called, an implicit call to session_start() with no parameters will be made. But $_SESSION requires session_start() before use.

answer Oct 5, 2014 by Rajneesh
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