Calculator In PHP

Calculator In Php

Php Code For making calculator In Php Which will perform functions such as addition,subtraction,Multiplication,Division.

Code For Calculator In Php

<?php

//The following is the calculator code:



ini_set('display_errors',0); //ini_set for error reporting

if( isset( $_REQUEST['calculate'] ))//isset check whether value is null or not.

{

$operator=$_REQUEST['operator'];

if($operator=="+")// add operator

{

$add1 = $_REQUEST['fvalue']; // getting values of html form

$add2 = $_REQUEST['lvalue']; // getting values of html form

$res= $add1+$add2;//adding values

}

if($operator=="-")//substracting operator

{

$add1 = $_REQUEST['fvalue'];// getting values of html form

$add2 = $_REQUEST['lvalue'];// getting values of html form

$res= $add1-$add2;//substracting values

}

if($operator=="*")//multipilcation operator

{

$add1 = $_REQUEST['fvalue'];//  getting values of html form

$add2 = $_REQUEST['lvalue'];//  getting values of html form

$res =$add1*$add2;//multiply values

}

if($operator=="/")//divide opeartor

{

$add1 = $_REQUEST['fvalue']; // getting values of html form

$add2 = $_REQUEST['lvalue']; //  getting values of html form

$res= $add1/$add2;divide values

}



}

?>

<form> // html form

Enter First Number<input name="fvalue" type="text">

            Select Operator <select name="operator">

<option>+</option>

<option>-</option>

<option>*</option>

<option>/</option>

</select>

Enter Second Number<input name="lvalue" type="text"/>

<input type="submit" name="calculate" value="Calculate" />

                Output =

               <?php echo $res;?>// output results

 </form>

Output Screenshot1

Screenshot1

In this example i had made calculator to calculate two values for addition, subtraction, Multiplication, Division.

Refer Articles :-

• ASSIGNMENT OPERATORS IN PHP
• ARITHMETIC OPERATORS IN PHP
• LOGICAL OPERATORS IN PHP
• IF_ELSE IF STATEMENT IN PHP
• VARIABLES IN PHP
• ECHO STATEMENT IN PHP

Articles For Detail Study Programming In Php. Details About Php Code Which I used to make Calculator In php.