I'm trying to switch php versions, get following response. I tried dismounting mpm_prefork and mpm_worker still no joy, any ideas please.
on Ubuntu 16.04
sudo a2enmod php5.6 Considering dependency mpm_prefork for php5.6: Considering conflict mpm_event for mpm_prefork: Considering conflict mpm_worker for mpm_prefork: Enabling module mpm_prefork. Considering conflict php5 for php5.6: Enabling module php5.6. To activate the new configuration, you need to run: service apache2 restart 6 Answers
To install the Ondřej Surý repo
sudo add-apt-repository ppa:ondrej/php To install PHP versions
sudo apt install php5.6 php7.0 php7.1 php7.2 php7.3 php7.4 php8.0 php8.1 Your commands looks correct. Did you restart apache before testing?
sudo service apache2 restart The PHP module php5.6 made by Ondřej Surý can only be enabled by:
sudo a2dismod php7.0 sudo a2dismod php7.1 sudo a2dismod php7.2 sudo a2dismod php7.3 sudo a2dismod php7.4 sudo a2dismod php8.0 sudo a2dismod php8.1 sudo a2enmod php5.6 sudo update-alternatives --set php /usr/bin/php5.6 sudo service apache2 restart I have found that this setup isn't compatible with any other MPM modules other that PREFORK. You have to make sure you disable ALL other MPM modules first, before enabling the php5.6 mod.
If the mod won't enable you might have to try to disable the other MPM's.
sudo a2dismod mpm_prefork sudo a2dismod mpm_worker sudo a2dismod mpm_event Then try to enable the mod again as it should auto enable the correct MPM.
$ sudo a2enmod php5.6 Considering dependency mpm_prefork for php5.6: Considering conflict mpm_event for mpm_prefork: Considering conflict mpm_worker for mpm_prefork: Module mpm_prefork already enabled Considering conflict php5 for php5.6: Enabling module php5.6. To activate the new configuration, you need to run: service apache2 restart FYI, I like to put these commands into my '.bash_aliases' so I always have them handy for DEV work.
# Aliases - PHP alias php.info='php -i' alias php5.6='sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php5.6 && sudo update-alternatives --set php /usr/bin/php5.6 && sudo service apache2 restart' alias php7.0='sudo a2dismod php5.6 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php7.0 && sudo update-alternatives --set php /usr/bin/php7.0 && sudo service apache2 restart' alias php7.1='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php7.1 && sudo update-alternatives --set php /usr/bin/php7.1 && sudo service apache2 restart' alias php7.2='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php7.2 && sudo update-alternatives --set php /usr/bin/php7.2 && sudo service apache2 restart' alias php7.3='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php7.3 && sudo update-alternatives --set php /usr/bin/php7.3 && sudo service apache2 restart' alias php7.4='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php8.0 && sudo a2dismod php8.1 && sudo a2enmod php7.4 && sudo update-alternatives --set php /usr/bin/php7.4 && sudo service apache2 restart' alias php8.0='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.1 && sudo a2enmod php8.0 && sudo update-alternatives --set php /usr/bin/php8.0 && sudo service apache2 restart' alias php8.1='sudo a2dismod php5.6 && sudo a2dismod php7.0 && sudo a2dismod php7.1 && sudo a2dismod php7.2 && sudo a2dismod php7.3 && sudo a2dismod php7.4 && sudo a2dismod php8.0 && sudo a2enmod php8.1 && sudo update-alternatives --set php /usr/bin/php8.1 && sudo service apache2 restart' php -v (default PHP version)
From PHP 7.0 to PHP 5.6:
sudo a2dismod php7.0 sudo a2enmod php5.6 sudo update-alternatives --set php /usr/bin/php5.6 sudo service apache2 restart From PHP 5.6 to PHP 7.0:
sudo a2dismod php5.6 sudo a2enmod php7.0 sudo update-alternatives --set php /usr/bin/php7.0 sudo service apache2 restart To configure php7 to run with your server you need to do some configuration: 1. Make sure you remove any traces of php/php5 Open a terminal and:
cd /etc/apache2/mods-enabled ls -la The output should not contain any php5.conf or php5.load, but if it does, do the following:
# this is the proper way of disabling modules sudo a2dismod php5 # run this only if the above command didn't remove the php5 sym-links sudo rm php5.load sudo rm php5.con Now add the php7.0.conf and php7.0.load instead:
# this is the proper way of enabling modules sudo a2enmod php7.0 # run this only if the above command didn't create the php7.0 sym-links sudo ln -s php7.0.conf ../mods-available/php7.0.conf sudo ln -s php7.0.load ../mods-available/php7.0.load The output of ls -la php* should look like this:
lrwxrwxrwx 1 root root 29 Apr 15 03:55 php7.0.conf -> ../mods-available/php7.0.conf lrwxrwxrwx 1 root root 29 Apr 15 03:55 php7.0.load -> ../mods-available/php7.0.load After dealing with the modules we now come to the /etc/apache2/conf-enabled directory. Remove any traces of php/php5 here as well by sudo rm
Then, if needed do:
# the proper way of enabling configs sudo a2enconf php7.0-cgi sudo a2enconf php7.0-fpm # do those commands only if the above didn't work out sudo ln -s php7.0-cgi.conf ../conf-available/php7.0-cgi.conf sudo ln -s php7.0-fpm.conf ../conf-available/php7.0-fpm.conf The output of ls -la php* should look like this:
lrwxrwxrwx 1 root root 33 Apr 21 17:00 php7.0-cgi.conf -> ../conf-available/php7.0-cgi.conf lrwxrwxrwx 1 root root 33 Apr 21 17:01 php7.0-fpm.conf -> ../conf-available/php7.0 And restart apache.
I have just resolved by following these steps.
1If sudo a2dismod php8.0 does not disable php8.0 module and you cannot switch php module to php7.4 then you can try following:
sudo a2disconf php8.0-fpm sudo a2enmod php7.4 sudo systemctl reload apache2 Just try it
sudo a2dismod php7.2 && sudo update-alternatives --set php /usr/bin/php7.1 && sudo a2enmod php7.1 && sudo service apache2 restart a2enmod is a command related to apache2 while php -v is a command which is related to php itself .
when you are running the following command
sudo a2enmod php5.6 you are then talking to apache2 not to php [ hey apache , enable php5 module for me instead of php7.0 ] so to speak .
to enable php5 in your server , you will have to :-
1) remove the current php version which is 7 , and then download your desired version of php .
or
2) download php 5 along side php 7
i think that php-version will be a great starting point to do some thing like that .
