PHP Form Handling: GET, POST, and User Input Processing

Demonstrates how to submit and retrieve form data using the GET method.

    echo "<h3?>

Welcome, " . $userName . "!"; echo "You are a " . ($gender === 'male' ? 'boy' : 'girl') . "!"; } ?> Experiment 2: Handling Form Data with POST Method

Demonstrates how to submit and retrieve form data using the POST method.

Your Name:
Gender: Male Female
Occupation: Student Teacher Doctor
Highest Education: Middle School High School Bachelor Master or Above
Your Comments:
<?php // This would be in process_post.php if ($_SERVER['REQUEST_METHOD'] === 'POST') { $feedbackName = htmlspecialchars($_POST['feedbackName']); $gender = $_POST['gender']; $occupation = $_POST['occupation']; $education = $_POST['education']; $comments = htmlspecialchars($_POST['commments']);

    echo "<h3?>

Thank you, " . $feedbackName . "!"; echo "Please confirm your information:

"; echo "Gender: " . $gender . "
"; echo "Occupation: " . $occupation . "
"; echo "Education: " . $education . "
"; echo "Comments: " . $comments . "
"; } ?> Experiment 3: Calculating Sum from 1 to N

Calculates the sum of numbers from 1 to a user-specifide number.

Calculate 1+2+3+...+ <?php if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['targetNumber'])) { $targetNumber = (int)$_POST['targetNumber']; $sum = 0;

    if ($targetNumber ?>
  1. { for ($i = 1; $i <= $targetNumber; $i++) { $sum += $i; } echo "alert('The sum from 1 to " . $targetNumber . " is: " . $sum . "')"; } else { echo "alert('Please enter a positive number')"; } } ?>

Tags: PHP GET post form handling user input

Posted on Sat, 18 Jul 2026 16:14:12 +0000 by kjharve