<?php $x = 1; $y = 1; for ($x<=9; $y<=9; $x++, $y++, $a=$x*$y) { echo "$x*$y = $a\n"; }
Standard input is empty
1*1 = 2*2 = 4 3*3 = 9 4*4 = 16 5*5 = 25 6*6 = 36 7*7 = 49 8*8 = 64 9*9 = 81
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