Operator            Definition
==                     Equal to
!=                      Not equal to
>                       Greater than
<                       Less than
>=                     Greater than or equal to
<=                     Less than or equal to

Example:
<HTML>
<TITLE>Using Comparison Operators</TITLE>
<BODY>
<?
\$a = 21;
\$b = 15;
echo "<P>Original value of \\$a is \$a and \\$b is \$b</P>";
if (\$a == \$b) {
echo "<P>TEST 1: \\$a equals \\$b</P>";
} else {
echo "<P>TEST 1: \\$a is not equal to \\$b</P>";
}
if (\$a != \$b) {
echo "<P>TEST 2: \\$a is not equal to \\$b</P>";
} else {
echo "<P>TEST 2: \\$a is equal to \\$b</P>";
}
if (\$a > \$b) {
echo "<P>TEST 3: \\$a is greater than \\$b</P>";
} else {
echo "<P>TEST 3: \\$a is not greater than \\$b</P>";
}
if (\$a < \$b) {
echo "<P>TEST 4: \\$a is less than \\$b</P>";
} else {
echo "<P>TEST 4: \\$a is not less than \\$b</P>";
}
if (\$a >= \$b) {
echo "<P>TEST 5: \\$a is greater than or equal to \\$b</P>";
} else {
echo "<P>TEST 5: \\$a is not greater than or equal to \\$b</P>";
}
if (\$a <= \$b) {
echo "<P>TEST 6: \\$a is less than or equal to \\$b</P>";
} else {
echo "<P>TEST 6: \\$a is not less than or equal to \\$b</P>";
}
?>
</BODY>
</HTML>