There are plenty of browsers(Mozilla Firefox , Internet Explorer , Google Crome , Safari , Opera and many more) and Operating systems (Windows , Linux , Unix and many more) available in web world. It might be a case when you want to get browser/operating system details of visitors or users who came across your website built up with PHP and fill up a contact request form. Browser/Operating System details will help you to analyze the contact us request made by visitor or user. By looking at browser info & Operating system info,you have a brief idea about users before replying them.

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