Updating PHP & MySQL in Ubuntu 14.04

1. Updating PHP 5.5 to PHP 5.6

To upgrade to a newer version of PHP 5.6 on Ubuntu 14.04, you can use Ondřej Surý's PPA. He is one of the Debian maintainers of the php5 package. Also not that this update will overwrite any change you made to your 'php.ini' files. So, I recommend you make a back up of your 'php.ini' file and later on you can use it as a reference file to make changes in your new 'php.ini' file.

To add the PPA and upgrade your packages, run:

 sudo apt-get install software-properties-common  
 sudo add-apt-repository ppa:ondrej/php5-5.6  
 sudo apt-get update  
 sudo apt-get upgrade  
 sudo apt-get install php5  

1. Updating MySQL 5.5 to MySQL 5.6

 step 1 : take a backup  
 mysqldump --lock-all-tables -u root -p --all-databases > dump.sql  
 step 2 : remove old mysql  
 sudo apt-get remove mysql-server  
 sudo apt-get autoremove  
 step 3 : install new version of mysql  
 sudo apt-get install mysql-client-5.6 mysql-client-core-5.6  
 sudo apt-get install mysql-server-5.6  
 step 4 : restore your data  
 mysql -u root -p < dump.sql  

3. If error after logging into phpMyAdmin:

If you happen to get an error as below:

'Your PHP MySQL library version 5.5.46 differs from your MySQL server version 5.6.27.....'

Run the following commands:

 sudo apt-get remove php5-mysql  

You might have to reinstall your phpMyadmin.

To reinstall phpMyadmin enter the following commands:

 sudo apt-get install phpmyadmin