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<HTML>
<HEAD> <TITLE> Using Variables </TITLE> </HEAD>
<BODY>
<?php
$a = 10;
Use of + operator
$b = 5;
Use of - operator
echo "The sum of two numbers is ", $a+$b;
echo "<br>The difference of two numbers is ", $a-$b;
echo "<br>The product of two numbers is ", $a*$b;
Use of * operator
?>
</BODY>
</HTML>
Note that the <br> tag is used to print the text in next line. We get the following output by executing
the preceding script:
Relational operators: These operators help to compare quantities and return Boolean value ‘True’ or
‘False’ as a result. Relational operators of PHP are ==, !=, >, <, >= and <=. Let us create a PHP script to
use some of the relational operators.
<HTML>
<HEAD> <TITLE> Using Variables </TITLE> </HEAD>
<BODY>
<?php
$a = 10;
$b = 5;
echo "a is greater than b: ", var_dump($a>$b);
echo "<br>a is less than b: ", var_dump($a==$b);
echo "<br>a is equal to b: ", var_dump($a>=$b);
?>
</BODY>
</HTML>
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