I'm unable to install PHP5 in Ubuntu 16.04 [duplicate]

root@areeb-Inspiron-3420:/var/www/html# apt install php5 Reading package lists... Done Building dependency tree Reading state information... Done Package php5 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'php5' has no installation candidate root@areeb-Inspiron-3420:/var/www/html# apt-get install libapache2-mod-php5 Reading package lists... Done Building dependency tree... 50% Building dependency tree Reading state information... Done Package libapache2-mod-php5 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'libapache2-mod-php5' has no installation candidate 

What should I do now?

2 Answers

Ubuntu 16.04 LTS comes with PHP 7.0. To install it, you need to run:

sudo apt-get install php 

Or rather pick a specific PHP Web SAPI, most probably you need support for Apache2:

sudo apt-get install libapache2-mod-php php 

Or PHP FPM

sudo apt-get install php-fpm php 

If you specifically need PHP 5.x, you'll need to use ppa:ondrej/php and install, f.e. PHP 5.6 for Apache2:

sudo apt-get install php5.6 libapache2-mod-php5.6 

16.04 does not have PHP 5 in the official repositories. Install a 14.04 system, or use this PPA.