ERROR: failed to mkdir C:\php\pear\tests\PHP_CodeSniffer\CodeSniffer\Core\File

If your PHP installation has been done somewhere else other than the C:\ drive, then “pear install” command may throw errors.

Example: Here in my case, the xampp has been installed into E:\ drive and the “pear install” throws error.

Solution:
I get into the “pear” directory and checked config values set for different pear related directories. All were set to C:\ drive by default. So, we need to change those settings to correct path.