Less than and equal
<? $a = 21; $b = 15; echo "<P>Original value of \$a is $a and \$b is $b</P>"; if ($a <= $b) { echo "<P>TEST\$a is less than or equal to \$b</P>"; } else { echo "<P>TEST\$a is not less than or equal to \$b</P>"; } ?>