somevar 15 function addit globalssomevar echo somevar is this returns..., PHP Arrays, PHP

Question:$somevar = 15;
function addit() {
$GLOBALS["somevar"]++;
}
addit();
echo "Somevar is ".$GLOBALS["somevar"];
This returns the following

A Somevar is 16 
B Somevar is 15 
C Somevar is 16
Somevar is 17
Somevar is 18
Somevar is 19
Somevar is 20
.
.
. 
D 16 Somevar is 16

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Question:$somevar = 15; function addit() { $GLOBALS["somevar"]++; } addit(); echo "Somevar is ".$GLOBALS["somevar"]; This returns the following