Adding Two Numbers in PHP Using Textbox

In this example, I’ll show you how to add two numbers entered by user in PHP

Output:

PHP Code:


<?php
$sum=0;
$num1="";
$num2="";
if(isset($_POST["add"]))
{
    $num1= $_POST["num1"];
    $num2= $_POST["num2"];
    $sum = $num1 + $num2;
}

?>
<!doctype html>
<html>
    <head>
        <title>Code4Examples</title>
        <meta charset="utf-8">
        <style>
            label{
                display: block;
            }
        </style>
    </head>
    <body>
        <h1><?=$sum?></h1>
        <form action="" method="post">
            <label for="num1">Number 1:
                <input type="text" name="num1" value="<?=$num1?>">
            </label>
            <label for="num2">Number 2:
                <input type="text" name="num2" value="<?=$num2?>">
            </label>
            <button name="add" type="submit">Add Numbers</button>
        </form>
    </body>
</html>

<?php

$sum=0;

$num1="";

$num2="";

if(isset($_POST["add"]))

{

$num1= $_POST["num1"];

$num2= $_POST["num2"];

$sum = $num1 + $num2;

}

<!doctype html>

<html>

<head>

<title>Code4Examples</title>

<style>

label{

display: block;

}

</style>

</head>

<body>

<label for="num1">Number 1:

</label>

<label for="num2">Number 2:

</label>

<button name="add" type="submit">Add Numbers</button>

</form>

</body>

</html>

Adding Two Numbers in PHP Using Textbox1 min read

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