with the file phpinfo I had not xcache, memcached installed php5.6.12 or 5.5.28, when I changed into "Hosting Settings"
whereas when I php5.4.12 memcached, memcached, xcache, apc are available
how to make memcached, memcached, apc, xcache are available with php5.6.12 or +
Phpinfo
PHP Version 5.4.44
Additional .ini files parsed /etc/php.d/00-ioncube-loader.ini, /etc/php.d/apc.ini, /etc/php.d/apcu.ini, /etc/php.d/curl.ini, /etc/php.d/dom.ini, /etc/php.d/fileinfo.ini, /etc/php.d/gd.ini, /etc/php.d/igbinary.ini, /etc/php.d/imagick.ini, /etc/php.d/imap.ini, /etc/php.d/json.ini, /etc/php.d/mbstring.ini, /etc/php.d/memcache.ini, /etc/php.d/msgpack.ini, /etc/php.d/mysql.ini, /etc/php.d/mysqli.ini, /etc/php.d/pdo.ini, /etc/php.d/pdo_mysql.ini, /etc/php.d/pdo_sqlite.ini, /etc/php.d/phar.ini, /etc/php.d/posix.ini, /etc/php.d/sqlite3.ini, /etc/php.d/sysvmsg.ini, /etc/php.d/sysvsem.ini, /etc/php.d/sysvshm.ini, /etc/php.d/wddx.ini, /etc/php.d/xcache.ini, /etc/php.d/xmlreader.ini, /etc/php.d/xmlwriter.ini, /etc/php.d/xsl.ini, /etc/php.d/z-memcached.ini, /etc/php.d/zend_extensions_psa.ini, /etc/php.d/zip.ini
----------------
PHP Version 5.5.28
Additional .ini files parsed /opt/plesk/php/5.5/etc/php.d/00-ioncube-loader.ini, /opt/plesk/php/5.5/etc/php.d/10-opcache.ini, /opt/plesk/php/5.5/etc/php.d/20-mysqlnd.ini, /opt/plesk/php/5.5/etc/php.d/50-xdebug.ini, /opt/plesk/php/5.5/etc/php.d/bcmath.ini, /opt/plesk/php/5.5/etc/php.d/curl.ini, /opt/plesk/php/5.5/etc/php.d/dba.ini, /opt/plesk/php/5.5/etc/php.d/dom.ini, /opt/plesk/php/5.5/etc/php.d/enchant.ini, /opt/plesk/php/5.5/etc/php.d/fileinfo.ini, /opt/plesk/php/5.5/etc/php.d/gd.ini, /opt/plesk/php/5.5/etc/php.d/imagick.ini, /opt/plesk/php/5.5/etc/php.d/imap.ini, /opt/plesk/php/5.5/etc/php.d/intl.ini, /opt/plesk/php/5.5/etc/php.d/json.ini, /opt/plesk/php/5.5/etc/php.d/ldap.ini, /opt/plesk/php/5.5/etc/php.d/mbstring.ini, /opt/plesk/php/5.5/etc/php.d/mcrypt.ini, /opt/plesk/php/5.5/etc/php.d/mysql.ini, /opt/plesk/php/5.5/etc/php.d/mysqli.ini, /opt/plesk/php/5.5/etc/php.d/odbc.ini, /opt/plesk/php/5.5/etc/php.d/pdo.ini, /opt/plesk/php/5.5/etc/php.d/pdo_mysql.ini, /opt/plesk/php/5.5/etc/php.d/pdo_odbc.ini, /opt/plesk/php/5.5/etc/php.d/pdo_pgsql.ini, /opt/plesk/php/5.5/etc/php.d/pdo_sqlite.ini, /opt/plesk/php/5.5/etc/php.d/pgsql.ini, /opt/plesk/php/5.5/etc/php.d/phar.ini, /opt/plesk/php/5.5/etc/php.d/posix.ini, /opt/plesk/php/5.5/etc/php.d/pspell.ini, /opt/plesk/php/5.5/etc/php.d/redis.ini, /opt/plesk/php/5.5/etc/php.d/snmp.ini, /opt/plesk/php/5.5/etc/php.d/soap.ini, /opt/plesk/php/5.5/etc/php.d/sqlite3.ini, /opt/plesk/php/5.5/etc/php.d/sysvmsg.ini, /opt/plesk/php/5.5/etc/php.d/sysvsem.ini, /opt/plesk/php/5.5/etc/php.d/sysvshm.ini, /opt/plesk/php/5.5/etc/php.d/tidy.ini, /opt/plesk/php/5.5/etc/php.d/xmlreader.ini, /opt/plesk/php/5.5/etc/php.d/xmlrpc.ini, /opt/plesk/php/5.5/etc/php.d/xmlwriter.ini, /opt/plesk/php/5.5/etc/php.d/xsl.ini, /opt/plesk/php/5.5/etc/php.d/zip.ini
---
PHP Version 5.6.12
Additional .ini files parsed /opt/plesk/php/5.6/etc/php.d/00-ioncube-loader.ini, /opt/plesk/php/5.6/etc/php.d/10-opcache.ini, /opt/plesk/php/5.6/etc/php.d/20-mysqlnd.ini, /opt/plesk/php/5.6/etc/php.d/50-xdebug.ini, /opt/plesk/php/5.6/etc/php.d/bcmath.ini, /opt/plesk/php/5.6/etc/php.d/curl.ini, /opt/plesk/php/5.6/etc/php.d/dba.ini, /opt/plesk/php/5.6/etc/php.d/dom.ini, /opt/plesk/php/5.6/etc/php.d/enchant.ini, /opt/plesk/php/5.6/etc/php.d/fileinfo.ini, /opt/plesk/php/5.6/etc/php.d/gd.ini, /opt/plesk/php/5.6/etc/php.d/imagick.ini, /opt/plesk/php/5.6/etc/php.d/imap.ini, /opt/plesk/php/5.6/etc/php.d/intl.ini, /opt/plesk/php/5.6/etc/php.d/json.ini, /opt/plesk/php/5.6/etc/php.d/ldap.ini, /opt/plesk/php/5.6/etc/php.d/mbstring.ini, /opt/plesk/php/5.6/etc/php.d/mcrypt.ini, /opt/plesk/php/5.6/etc/php.d/mysql.ini, /opt/plesk/php/5.6/etc/php.d/mysqli.ini, /opt/plesk/php/5.6/etc/php.d/odbc.ini, /opt/plesk/php/5.6/etc/php.d/pdo.ini, /opt/plesk/php/5.6/etc/php.d/pdo_mysql.ini, /opt/plesk/php/5.6/etc/php.d/pdo_odbc.ini, /opt/plesk/php/5.6/etc/php.d/pdo_pgsql.ini, /opt/plesk/php/5.6/etc/php.d/pdo_sqlite.ini, /opt/plesk/php/5.6/etc/php.d/pgsql.ini, /opt/plesk/php/5.6/etc/php.d/phar.ini, /opt/plesk/php/5.6/etc/php.d/posix.ini, /opt/plesk/php/5.6/etc/php.d/pspell.ini, /opt/plesk/php/5.6/etc/php.d/redis.ini, /opt/plesk/php/5.6/etc/php.d/snmp.ini, /opt/plesk/php/5.6/etc/php.d/soap.ini, /opt/plesk/php/5.6/etc/php.d/sqlite3.ini, /opt/plesk/php/5.6/etc/php.d/sysvmsg.ini, /opt/plesk/php/5.6/etc/php.d/sysvsem.ini, /opt/plesk/php/5.6/etc/php.d/sysvshm.ini, /opt/plesk/php/5.6/etc/php.d/tidy.ini, /opt/plesk/php/5.6/etc/php.d/xmlreader.ini, /opt/plesk/php/5.6/etc/php.d/xmlrpc.ini, /opt/plesk/php/5.6/etc/php.d/xmlwriter.ini, /opt/plesk/php/5.6/etc/php.d/xsl.ini, /opt/plesk/php/5.6/etc/php.d/zip.ini
thank you