<?php $opName = 'another one'; for ($x = 1; $y = $x * $x <= 81; $x++) { echo "$x x $x = $y $opName\n"; }
Standard input is empty
1 x 1 = 1 another one 2 x 2 = 1 another one 3 x 3 = 1 another one 4 x 4 = 1 another one 5 x 5 = 1 another one 6 x 6 = 1 another one 7 x 7 = 1 another one 8 x 8 = 1 another one 9 x 9 = 1 another one