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Calculator using Dropdown in PHP


In this tutorial, we are going to create Calculator using Dropdown in PHP. I create this simple program in PHP using the drop-down menu to select a mathematical operator such as Addition, Subtraction, Multiplication, and Division. Check the live demo, click the button below. First, we have to create the markup for this program. This source code contains two TextBox where the user enters the desired numeric value and one combo box where they can select in what mathematical operator they have to use.
To execute the calculator, we need to construct the PHP query where the operators can run after hit the calculate button on the web page. Let's create one by one. For Addition
Sample Output for Addition ResultFor Subtraction
Sample Output for Subtraction ResultFor Multiplication
Sample Output for Multiplication ResultFor Division
Sample Output for Division Result For the complete source code. Using the source code below, you can use a mathematical operator such as Addition, Subtraction, Multiplication, and Division.

Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.

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