Above written code shows a simple yet functional PHP calculator using a custom HTML form. Users input two numbers, select an operation, submit the form, and receive the result. …see more ...

Two input fields for entering numbers. A dropdown menu to select the operation. A submit button to calculate the result. PHP Handling: Processes the form input when the form is submitted. Converts ...

Go to the Zigaform Estimator Lite menu and click on "Add New Form". Enter the title for your form in the pop-up that appears. Drag and drop or click to add elements to your form. Customize the form ...