The memcached that you installed is not a PHP extension.
As well memcached extension has not been made available in Webuzo. It needs to be manually configured on your server. Please follow the given below steps for manually configuring the memcache.so in php72:
1. Execute the following commands in order given:
# yum install cyrus-sasl-devel
# cd
# wget https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz # tar -zxvf libmemcached-1.0.18.tar.gz
# cd libmemcached-1.0.18
# ./configure
# make && make install
# wget http://pecl.php.net/get/memcached-3.1.3.tgz # tar -zxf memcached-3.1.3.tgz
# cd memcached-3.1.3
# /usr/local/apps/php72/bin/phpize
# LDFLAGS="-L/usr/local/apps/lib" CPPFLAGS="-I/usr/local/apps/include" ./configure --with-php-config="/usr/local/apps/php72/bin/php-config" --with-zlib-dir="/usr/local/apps" --disable-memcached-sasl && make && make install
# cd
# cp /root/memcached-3.1.3/modules/memcached.so /usr/local/apps/php72/ext
2. Open the PHP 72 extra.ini file by executing the following command as root:
# vi /usr/local/apps/php72/etc/php.d/extra.ini
3. Add the following statement to the end of the file:
extension=memcached.so
4. Restart the PHP72 service from commandline as root:
# service php-fpm72 restart
Once done, you will find the memcached extension loaded in PHP 72 using following command:
# php -m | grep memcached
We'll try to provide memcached extension in Webuzo as soon as possible.