Passing multiple variables to another page in url

There are several ways to pass variables from one PHP page to another:

Using the $_GET superglobal array:

<?php

$name = 'John';
$age = 30;

// Pass variables in the URL
echo "<a href='page2.php?name=$name&age=$age'>Go to page 2</a>";

On page 2, you can access the variables like this:

<?php

$name = $_GET['name'];
$age = $_GET['age'];

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Using the $_POST superglobal array:

<?php

$name = 'John';
$age = 30;

// Use a form to pass variables to page2.php
echo "<form method='post' action='page2.php'>
      <input type='hidden' name='name' value='$name'>
      <input type='hidden' name='age' value='$age'>
      <input type='submit' value='Go to page 2'>
      </form>";

On page 2, you can access the variables like this:

<?php

$name = $_POST['name'];
$age = $_POST['age'];

Using a session:

<?php

// Start the session on page 1
session_start();

$name = 'John';
$age = 30;

// Store variables in the session
$_SESSION['name'] = $name;
$_SESSION['age'] = $age;

// Redirect to page 2
header('Location: page2.php');

On page 2, you can access the variables like this:

<?php

// Start the session on page 2
session_start();

$name = $_SESSION['name'];
$age = $_SESSION['age'];