I have installed php 5.6 and and php 7.1 on my Ubuntu 16.04
I know with Apache as my web server, I can do
a2enmod php5.6 #to enable php5
a2enmod php7.1 #to enable php7
When I disable php7.1 in Apache modules and enable php 5.6, Apache recognizes the change and uses php 5.6 interpreter as expected.
But when I run internal php web server from the commandline:
php -S localhost:8888
php handles requests using php 7. So how do I switch between php 5.6 and php 7.1 in the command line ?
This question is related to
php
apache
command-line-interface
php-5.6
php-7.1
Switch from PHP 5.6 to PHP 7.2 using:
sudo a2dismod php5.6 && sudo a2enmod php7.2 && sudo service apache2 restart
Switch from PHP 7.2 to PHP 5.6 using:
sudo a2dismod php7.2 && sudo a2enmod php5.6 && sudo service apache2 restart
You could use these open source PHP Switch Scripts, which were designed specifically for use in Ubuntu 16.04 LTS.
https://github.com/rapidwebltd/php-switch-scripts
There is a setup.sh
script which installs all required dependencies for PHP 5.6, 7.0, 7.1 & 7.2. Once this is complete, you can just run one of the following switch scripts to change the PHP CLI and Apache 2 module version.
./switch-to-php-5.6.sh
./switch-to-php-7.0.sh
./switch-to-php-7.1.sh
./switch-to-php-7.2.sh
You can use the below script to switch between PHP version easily I have included phpize configuration too.
https://github.com/anilkumararumulla/switch-php-version
Download the script file and run
sh switch.sh
please follow the steps :
i.e : your current version is : current_version = 7.3 , and you want to change it to : new_version = 7.2
1) sudo a2dismod php(current_version)
2) sudo a2enmod php(new_version)
3) sudo update-alternatives --config php (here you need to select php version number)
4) restart apache through :
sudo /etc/init.d/apache2 restart OR
sudo service apache2 restart
When installing laravel on Ubuntu 18.04, be default PHP 7.3.0RC3 install selected, but laravel and symfony will not install properly complaining about missin php-xml and php-zip, even though they are installed. You need to switch to php 7.1, using the instructions above or,
sudo update-alternatives --set php /usr/bin/php7.1
now, running laravel new blog, will proceed correctly
May be you might have an old PHP version like PHP 5.6 in your system and you installed PHP 7.2 too so thats multiple PHP in your machine. There are some applications which were developed when older PHP 5.6 was latest version, they are still live and you working on those applications, You might be working on Laravel simultaneously but Laravel requires PHP 7+ to get started. Getting the picture ?
In that case you can switch between the PHP versions to suit your requirements.
Switch From PHP 5.6 => PHP 7.2
Apache:-
sudo a2dismod php5.6
sudo a2enmod php7.2
sudo service apache2 restart
Command Line:-
sudo update-alternatives --set php /usr/bin/php7.2
sudo update-alternatives --set phar /usr/bin/phar7.2
sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.2
sudo update-alternatives --set phpize /usr/bin/phpize7.2
sudo update-alternatives --set php-config /usr/bin/php-config7.2
And vice-versa, Switch From PHP 7.2 => PHP 5.6
Apache:-
sudo a2dismod php7.2
sudo a2enmod php5.6
sudo service apache2 restart
Command Line:-
sudo update-alternatives --set php /usr/bin/php5.6
sudo update-alternatives --set phar /usr/bin/phar5.6
sudo update-alternatives --set phar.phar /usr/bin/phar.phar5.6
sudo update-alternatives --set phpize /usr/bin/phpize5.6
sudo update-alternatives --set php-config /usr/bin/php-config5.6
To list all available versions and choose from them :
sudo update-alternatives --config php
Or do manually
sudo a2dismod php7.1 // disable
sudo a2enmod php5.6 // enable
type this in your command line, should work for all ubuntu between 16.04, 18.04 and 20.04.
$ sudo update-alternatives --config php
and this is what you will get
There are 4 choices for the alternative php (providing /usr/bin/php).
Selection Path Priority Status
------------------------------------------------------------
* 0 /usr/bin/php7.2 72 auto mode
1 /usr/bin/php5.6 56 manual mode
2 /usr/bin/php7.0 70 manual mode
3 /usr/bin/php7.1 71 manual mode
4 /usr/bin/php7.2 72 manual mode
Press <enter> to keep the current choice[*], or type selection number:
Choose the appropriate version
sudo update-alternatives --config php
sudo update-alternatives --config phar
sudo update-alternatives --config phar.phar
Default PHP 5.6 is set on your system and you need to switch to PHP 7.1.
Apache:
$ sudo a2dismod php5.6
$ sudo a2enmod php7.1
$ sudo service apache2 restart
Command Line:
$ sudo update-alternatives --set php /usr/bin/php7.1
$ sudo update-alternatives --set phar /usr/bin/phar7.1
$ sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.1
Default PHP 7.1 is set on your system and you need to switch to PHP 5.6.
Apache:
$ sudo a2dismod php7.1
$ sudo a2enmod php5.6
$ sudo service apache2 restart
Command Line:
$ sudo update-alternatives --set php /usr/bin/php5.6
From PHP 5.6 => PHP 7.1
$ sudo a2dismod php5.6
$ sudo a2enmod php7.1
for old linux versions
$ sudo service apache2 restart
for more recent version
$ systemctl restart apache2
Type given command in your terminal..
For disable the selected PHP version...
For enable other PHP version....
It will upgrade Php version, same thing reverse if you want version downgrade, you can see it by PHP_INFO();
You can use below command lines to switch between two PHP version.
E.g.
I want to switch PHP Version
from 7.1
to 7.2
we can use below command
sudo a2dismod php7.1 && sudo update-alternatives --set php /usr/bin/php7.2 && sudo a2enmod php7.2 && sudo service apache2 restart
a2dismod
is use to disable the current php version and a2enmod
is use to enable the version
I think you should try this
From php5.6 to php7.1
sudo a2dismod php5.6
sudo a2enmod php7.1
sudo service apache2 restart
sudo update-alternatives --set php /usr/bin/php7.1
sudo update-alternatives --set phar /usr/bin/phar7.1
sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.1
From php7.1 to php5.6
sudo a2dismod php7.1
sudo a2enmod php5.6
sudo service apache2 restart
sudo update-alternatives --set php /usr/bin/php5.6
sudo update-alternatives --set phar /usr/bin/phar5.6
sudo update-alternatives --set phar.phar /usr/bin/phar.phar5.6
You can create a script to switch from versions: sudo nano switch_php
then type this:
#!/bin/sh
#!/bin/bash
echo "Switching to PHP$1..."
case $1 in
"7")
sudo a2dismod php5.6
sudo a2enmod php7.0
sudo service apache2 restart
sudo ln -sfn /usr/bin/php7.0 /etc/alternatives/php;;
"5.6")
sudo a2dismod php7.0
sudo a2enmod php5.6
sudo service apache2 restart
sudo ln -sfn /usr/bin/php5.6 /etc/alternatives/php;;
esac
echo "Current version: $( php -v | head -n 1 | cut -c-7 )"
exit and save
make it executable: sudo chmod +x switch_php
To execute the script just type ./switch_php [VERSION_NUMBER]
where the parameter is 7 or 5.6
That's it you can now easily switch form PHP7 to PHP 5.6!
I actually wouldn't recommend using a2enmod
for php 5 or 7. I would use update-alternatives
. You can do sudo update-alternatives --config php
to set which system wide version of PHP you want to use. This makes your command line and apache versions work the same. You can read more about update-alternatives
on the man page.
I made a bash script to switch between different PHP versions on Ubuntu.
Hope it helps someone.
Here's the script: (save it in /usr/local/bin/sphp.sh, don't forget to add +x flag with command: sudo chmod +x /usr/local/bin/sphp.sh)
#!/bin/bash_x000D_
_x000D_
# Usage_x000D_
if [ $# -ne 1 ]; then_x000D_
echo "Usage: sphp [phpversion]"_x000D_
echo "Example: sphp 7.2"_x000D_
exit 1_x000D_
fi_x000D_
_x000D_
currentversion="`php -r \"error_reporting(0); echo str_replace('.', '', substr(phpversion(), 0, 3));\"`"_x000D_
newversion="$1"_x000D_
_x000D_
majorOld=${currentversion:0:1}_x000D_
minorOld=${currentversion:1:1}_x000D_
majorNew=${newversion:0:1}_x000D_
minorNew=${newversion:2:1}_x000D_
_x000D_
if [ $? -eq 0 ]; then_x000D_
if [ "${newversion}" == "${currentversion}" ]; then_x000D_
echo "PHP version [${newversion}] is already being used"_x000D_
exit 1_x000D_
fi_x000D_
_x000D_
echo "PHP version [$newversion] found"_x000D_
echo "Switching from [php${currentversion}] to [php${newversion}] ... "_x000D_
_x000D_
printf "a2dismod php$majorOld.$minorOld ... "_x000D_
sudo a2dismod "php${majorOld}.${minorOld}"_x000D_
printf "[OK] and "_x000D_
_x000D_
printf "a2enmod php${newversion} ... "_x000D_
sudo a2enmod "php${majorNew}.${minorNew}"_x000D_
printf "[OK]\n"_x000D_
_x000D_
printf "update-alternatives ... "_x000D_
sudo update-alternatives --set php "/usr/bin/php${majorNew}.${minorNew}"_x000D_
printf "[OK]\n"_x000D_
_x000D_
sudo service apache2 restart_x000D_
printf "[OK] apache2 restarted\n"_x000D_
else_x000D_
echo "PHP version $majorNew.$minorNew was not found."_x000D_
echo "Try \`sudo apt install php@${newversion}\` first."_x000D_
exit 1_x000D_
fi_x000D_
_x000D_
echo "DONE!"
_x000D_
Source: Stackoverflow.com