With the emergence of online technologies such as the Internet, people and businesses have increased their reliance and use of these mediums as an avenue for commerce as it can be more convenient. During the transaction online, there are times when it is important to preset the web visitor’s country of origin, ZIP code, ISP and domain name at the drop down list to prevent fraud and to ease the complexity of registration task. This article shows you how by using PHP and MYSQL Technology, it can be done.
Let us take a simple example of a user login from Canada and he needs to fill up a shopping cart. The form may be quite complex as some businesses need more information to prevent fraud. In this case, there are needs to preset certain info in the drop down list such as country of origin, ZIP code, ip and domain name of where the users login. As a result, the drop down list in this example will preset to Cananda, with the correct zip code and ip address.
In this tutorial, we use the IP2Location™ IP-Country database to lookup country of origin from the visitor’s IP address. Instead of loading the full database with 50000+ records, we could simplify this tutorial with assumption only two different IP address ranges in the world. IP addresses 0.0.0.0 – 22.214.171.124 originate from United States. Meanwhile, IP addresses 127.0.0.0 – 255.255.255.255 originate from Japan. Here we are creating a database “IP2Location” with table “ip_country” that consists of two IP address range records.
Below are the steps to set up the database for both IPv4 and IPv6 data and the sample codes.