How would you represent EOF in bash

read -d EOF stdin

for word in $stdin; do stuff; done

stdin=$(cat)
for word in $stdin; do stuff; done

while read -r -a array; do
    for word in "${array[@]}"; do
        stuff;
    done
done

if test "$char" = '^V'; then...

$ cat | od -b
^D
0000000 004 012
0000002

$ read -d "$(echo -e '04')" stdin
foo
bar quuz^Hx
^D
$ echo "$stdin"
foo
bar quux
$ for word in $stdin; do echo $word; done
foo
bar
quux