Upgrade PHP from 5.3 to 5.5 in Ubuntu 12.04 LTS

In Ubuntu 12.04 LTS, use

sudo apt-get install PHP5-FPM

The PHP version installed is PHP5.3, if you want to use the YII2 or laravel framework, the PHP version is at least 5.4+, so upgrade.

Upgrade steps

Initialize the operation:

sudo apt-get updatesudo apt-get install python-software-properties

Update the PPA Source:

sudo add-apt-repository ppa:ondrej/php5

If you just want to upgrade to 5.4, execute the following command:

sudo add-apt-repository ppa:ondrej/php5-oldstable

Next, perform updates and upgrades:

sudo apt-get updatesudo apt-get dist-upgrade

Executing the command php-v will find that the update was successful.

Note 1

If the previous Nginx configured listening 9000 port to process PHP, then to listen to the UNIX socket, otherwise the PHP page will not be opened correctly. Upcoming

Fastcgi_pass 127.0.0.1:9000;

Change into

Fastcgi_pass Unix:/var/run/php5-fpm.sock;

NOTE 2

The difference between upgrade and Dist-upgrade:

Dist-upgrade will identify and deal with situations where dependency changes are made, and upgrade does not deal with this situation.

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