I need to use browscap and in php.ini file it mentioned extra folder, but I can not find the folder. please tell me where to put the php_browscap.ini file
By default, your php.ini file will be located within your public_html directory. For more information on making modifications to your php.ini file, you may review the following article:
How to update your local php settings
From taking a look at documentation on browscap, it appears that there is not a specific place to look for it, but your php.ini file would need to be modified to determine the path for wherever your place it. The following documentation is some that I was able to find that explains it:
get_browser documentation on PHP.net