How can the calculated result be displayed using $_POST in PHP?

To display the calculated result using $_POST in PHP, you first need to capture the input values from a form using $_POST, perform the calculation, and then echo out the result. Make sure to sanitize and validate the input data to prevent security vulnerabilities. Finally, display the result on the webpage for the user to see. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $num1 = $_POST['num1'];
    $num2 = $_POST['num2'];
    
    // Perform calculation
    $result = $num1 + $num2;

    // Display the result
    echo "The result of the calculation is: " . $result;
}
?>

<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    <input type="text" name="num1" placeholder="Enter number 1">
    <input type="text" name="num2" placeholder="Enter number 2">
    <button type="submit">Calculate</button>
</form>

Keywords

$_POST calculated result display PHP

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