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How to downgrade PHP7 to PHP5.x ?

January 30, 2016 46.4k views
LAMP Stack PHP Apache Ubuntu

I upgrade my PHP in LAMP Ubuntu 14 server to PHP 7 following the tutorial - https://www.digitalocean.com/community/tutorials/how-to-upgrade-to-php-7-on-ubuntu-14-04

However after testing the application for 2 days, I wanted to downgrade it back to the original php version because of many unexpected errors in composer packages.

Image : http://i.imgur.com/MS2Q2Nz.png

Would be helpful if anyone can share the details.

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3 Answers
sajeer5037edce7 May 8, 2017

From php5.6 to php7.0:
Apache:
sudo a2dismod php5.6 ; sudo a2enmod php7.0 ; sudo service apache2 restart
CLI:
sudo update-alternatives --set php /usr/bin/php7.0
From php7.0 to php5.6:
Apache:
sudo a2dismod php7.0 ; sudo a2enmod php5.6 ; sudo service apache2 restart
CLI:
sudo update-alternatives --set php /usr/bin/php5.6

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tzviRBS April 18, 2016

This worked for me:

  • sudo apt-get remove -y --purge php7.0*
  • sudo add-apt-repository --remove ppa:ondrej/php
  • back php7 nginx conf

  • edit nginx conf to run php5:
    change: fastcgipass unix:/var/run/php/php7.0-fpm.sock
    to: fastcgi    pass unix:/var/run/php5-fpm.sock;

  • sudo apt-get update

  • install php5:
    sudo apt-get install php5-fpm php5-mysql

Reply
rafaelnogueira December 30, 2016

This work fine for me

From php5.6 to php7.0 :
Apache:
sudo a2dismod php5.6 ; sudo a2enmod php7.0 ; sudo service apache2 restart
CLI:
update-alternatives --set php /usr/bin/php7.0
from php7.0 to php5.6 :
Apache:
sudo a2dismod php7.0 ; sudo a2enmod php5.6 ; sudo service apache2 restart
CLI:
sudo update-alternatives --set php /usr/bin/php5.6

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