Global variables insdide and outside a function

 <?php

$somevar = 15;

function addit() {

 GLOBAL $somevar;

 $somevar++;

 print "Somevar is $somevar";

}

addit();

?>

<?php

$somevar = 15;

function addit() {

 $GLOBALS["somevar"]++;

}

addit();

print "Somevar is ".$somevar;

?>