How to build a PHP Increment/Decrement Form

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How to build a PHP Increment/Decrement Form

 

Below is the code that simply shows a HTML form that accepts Numerical Input from the user. The input can then be incremented or decremented, a function that is implemented using PHP. In case there is no input, it is assumed to be 0 (zero) which means it can be incremented (1, 2, …) or decremented (-1, -2, …).

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PHP Increment Form</title>
</head>
<body>
<div>

<form action="" method="POST">
<button>
<img src="" alt="RESET">
</button>
<input type="number">
</form>
</div>
</body>
</html>

The above form also has a RESET button that can reset any input to the default 0 (zero) that is invisible.

 

How to build a PHP Increment/Decrement Form
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