I need help in solving a question related to php & html codes

Initialize loop

i<=b?

Increment i

Print All Done

Y

N

for (i=$a, i<= $b, i= i+ 1)

Test i

Assume you already have

variables* $a, $b, $c, $d

$e, $f

i=i+1

$e > $f?

Print Hello

Initialize loop

j<=d?

Increment j

Y

N

for (j=$c, j<= $d, j= i+ 2)

Test j

j=j+2

Print Goodbye

N

Y

*no need for a POST statement, and you don't care what the actual values are