Installing PHP 5.6 on Xenial (16.04) [duplicate]

gistfile1.txt

How do I install different (upgrade or downgrade) PHP version in still supported Ubuntu release?
https://askubuntu.com/questions/109404/how-do-i-install-different-upgrade-or-downgrade-php-version-in-still-supported


sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get upgrade
#check if php5.6 is avaliable
apt list
#Install desired version
sudo apt-get install php7.1   # for PHP 7.1
sudo apt-get install php7.0   # for PHP 7.0
sudo apt-get install php5.6   # for PHP 5.6

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https://askubuntu.com/questions/462673/installing-php-5-3-in-ubuntu-14-04
This needs to be said over and over: Don't run outdated software.
PHP 5.3 has reached its end-of-life on 14 Aug 2014.


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Installing PHP 5.6 on Xenial (16.04) [duplicate]
https://askubuntu.com/questions/756181/installing-php-5-6-on-xenial-16-04
sudo add-apt-repository ppa:ondrej/php
mv1@mv1:~$ sudo add-apt-repository ppa:ondrej/php
[sudo] password for mv1: 
 Co-installable PHP versions: PHP 5.6, PHP 7.0, PHP 7.1 and most requested extensions are included.

PLEASE DON'T USE PHP 5.4 OR PHP 5.5. The PHP 5.5 and later are no longer supported with security updates, therefore they are not included in this repository.

You can get more information about the packages at https://deb.sury.org

BUGS&FEATURES: This PPA now has a issue tracker: https://deb.sury.org/#bug-reporting

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating regularly: https://donate.sury.org/

WARNING: add-apt-repository is broken with non-UTF-8 locales, see https://github.com/oerdnj/deb.sury.org/issues/56 for workaround:

# LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
 More info: https://launchpad.net/~ondrej/+archive/ubuntu/php
Press [ENTER] to continue or ctrl-c to cancel adding it
===========================================================





https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-16-04
https://askubuntu.com/questions/6358/how-do-you-restart-apache
https://httpd.apache.org/docs/2.4/vhosts/examples.html
https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-ubuntu-16-04

ini_set('display_errors',1);

//Test mysql_connect(),
$link = mysql_connect('127.0.0.1', 'root', 'dev');
if (!$link) {
echo 'Could not connect: ' . mysql_error();
}
else{
echo 'Connected successfully';
}
mysql_close($link);