PHP Package Tracking URL Library is used to convert package tracking numbers into their respective shipper's online tracking URL format.

Supported shippers:

• United States Postal Service (USPS)
• United Parcel Service (UPS)
• Federal Express (FedEx)
• OnTrac
• DHL

This software library is licensed under the BSD 2-clause license, and may be freely used in any project which is compatible with this license.

Usage:

$tracking = '1Z9999W99999999999';
$url = get_tracking_url($tracking);
echo $url;

Output:

http://wwwapps.ups.com/WebTracking/processInputRequest?TypeOfInquiryNumber=T&InquiryNumber1=1Z9999W99999999999