What is register globals

[mysql_beginner]

I have read register globals will not be available in PHP6. Does it mean we'll not be able to use such type of code

function a()
{
    global $b;
    $b = 10;
}

a();
echo $b; 

OR

We'll be unable to receive get/post/cookie/session values using global?

To experiment this, I have disabled register_globals in phpi.ini and run the 1st code. But can easily get the value of $b. Now I am confused by the term register globals.

[byron3@earthlink]

Read the online docs @ : http://us2.php.net/register_globals

[mysql_beginner]

Thanks for the link. I have read it. But can you answer, will this change affect the keyword global as I used in the function?

[stereofrog]

No, register_globals has nothing to do with "global" keyword.

[GhostGambler]

register_globals only affects the registration of request variables into the global scope.

Besides, using the keyword global is bad practice, so you should erase this one though~