Mixpanel - Simple PHP wrapper using only the mixpanel.track() endpoint.

mixpanel.php

<?php
// Mixpanel - Simple wrapper using only the mixpanel.track() endpoint.
function Mixpanel($event, $props = array(), $distinct_id = 0) {
    $api_key = '{api-key}';
    $data = array(
        'event' => $event,
        'properties' => array(
            'distinct_id' => $distinct_id,
            'token' => $api_key,
            'time' => time()
        )
    );
    $data['properties'] = array_merge_recursive($data['properties'], $props);
    $url = 'http://api.mixpanel.com/track/?data=';
    $post = $url.base64_encode(json_encode($data));
    $response = file_get_contents($post);
    return ($response == 1 ? true : false);
}

echo "Sent: " .( Mixpanel('test') ? 'Yes' : 'No');