<?php

$set = isset($_GET['id']) ? $_GET['id'] : 1;

$users = array(
    1 => array(
        'name'      => 'dan',
        'age'       => 14,
        'country'   => 'england',
    ),
    2 => array(
        'name'      => 'josh',
        'age'       => 17,
        'country'   => 'australlia',
    ),
);
if(isset($users[$set]))
 {
    $user = $users[$set];
 }
else
 {
    die("<b>Warning:</b> A user with the ID ".$set." Does not exist!");
 }

echo 'My name is ' . ucwords($user['name']) . ', i am ' . $user['age'] . ' Year\'s old, i am from ' . ucwords($user['country']) . ' and my user ID is ' . $set;

echo '<br /><br /><h1>All Users:</h1><br />';
echo '<xmp>$users = ' . print_r($users,true) . '</xmp>';
?>