What is the correct syntax for adding values from input boxes in PHP?

To add values from input boxes in PHP, you need to retrieve the values from the input boxes using $_POST or $_GET, convert them to integers if needed, perform the addition operation, and then display the result. Make sure to sanitize and validate the input values to prevent security issues. 

<?php
// Retrieve values from input boxes
$value1 = isset($_POST['input1']) ? (int)$_POST['input1'] : 0;
$value2 = isset($_POST['input2']) ? (int)$_POST['input2'] : 0;

// Perform addition operation
$result = $value1 + $value2;

// Display the result
echo "The sum of $value1 and $value2 is: $result";
?>

Keywords

PHP syntax input boxes values addition

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