Ubuntu – Upgrade to the specific php 7.1/7.2 from php 7.0 in Ubuntu 16.04

16.04PHPphp7update-manager

How can I upgrade to php 7.1 from php 7.0 in ubuntu 16.04 ?

If I do a php -v I get this message:

PHP 7.0.8-0ubuntu0.16.04.3 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.8-0ubuntu0.16.04.3, Copyright (c) 1999-2016, by Zend Technologies

Best Answer

There is no official PHP 7.1 in the Ubuntu 16.04 repos.

If you want PHP 7.1, there is a version available in ppa:ondrej/php

You can install it like this:

sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
(optional) sudo apt-get remove php7.0
sudo apt-get install php7.1 (from comments)

Remember that this is not an official upgrade path. The PPA is well known, and is relatively safe to use.

The PPA has co-installable packages (you can have multiple versions of PHP installed from that PPA). ~muru

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Ubuntu – downgrade php5 5.5.3 to php5 5.3 in ubuntu 13.10

I think best solution for now (and future too) is Vagrant. Vagrant can make lightweight, reproducible, and portable development environments. All what you need is in Ubuntu software center. So installation is very easy.

In next step you need vagrant boxies with your dev environments. Go to https://puphpet.com/ and configure box what you need (ex. PHP 5.3) and download. Vagrant box run with this command

vagrant up <box file name>

Ubuntu – PHP thesqli extension in Ubuntu 16.04 not working after upgrade to version 7.0.6

Without more information I can only describe general causes:

php7.0-mysql package is not installed, to fix run sudo apt-get install php-mysql
mysqli module got somehow disabled, to fix run phpenmod mysqli
You are using different web SAPI PHP version than you have PHP CLI, f.e. you might have installed libapache2-mod-php5.6 with php7.0-cli
Your Apache 2.x configuration contains different PHP FPM version (f.e. php5.6-fpm package) and Apache2 module (f.e. libapache2-mod-php7.0). Disable the FPM by running: a2disconf php5.5-fpm.
The web SAPI, you are using for web has different configuration file and thus mysqli module is not loaded, to fix add extension=mysqli.so to this custom configuration file
something else is broken and you should lookup for log messages indicating what's broken

To get more diagnostics:

run `php -r 'phpinfo();' and check the output for MySQL references:

$ php -r 'phpinfo();' | grep -i mysqli
/etc/php/5.6/cli/conf.d/20-mysqli.ini,
mysqli
MysqlI Support => enabled
mysqli.allow_local_infile => On => On
mysqli.allow_persistent => On => On
mysqli.default_host => no value => no value
mysqli.default_port => 3306 => 3306
mysqli.default_pw => no value => no value
mysqli.default_socket => no value => no value
mysqli.default_user => no value => no value
mysqli.max_links => Unlimited => Unlimited
mysqli.max_persistent => Unlimited => Unlimited
mysqli.reconnect => Off => Off
mysqli.rollback_on_cached_plink => Off => Off
API Extensions => mysql,mysqli,pdo_mysql

Do the same with the web, create a simple page with just `' and check the output for MySQLI module

After further looking into the issue, we found out, that there was a mix of PHP 5.5 and PHP 7.0 in the system that probably confused Apache2. As a general recommendation I would definitely recommend start with one PHP version to debug and purge the other(s).

To completely purge a specific PHP version, you can purge phpX.Y-common package that will pull all the other reverse dependencies:

Example:

apt-get purge php5.5-common # to remove PHP 5.5
apt-get purge php5.6-common # to remove PHP 5.6
apt-get purge php7.0-common # to remove PHP 7.0
# and to remove old php5 packages:
apt-get purge php5-common # to remove old PHP 5.x packages

Best Answer

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