To install pecl-uploadprogress you might need to do the following
1 - Login as root.
$ su -l Password: "Enter your root password"
2 - check if php-devel is already installed. So just run the following command and if it is not present it will install it and if it is prsent it will just update it.
$ yum install php-devel
3 - Once php-devel is installed just run the following command to install pecl-uploadprogress
$ pecl install uploadprogress
4 - Once it is installed add the following line to your php.ini file