We had a peculiar situation where both PHP5 and PHP7 were needed at the same time on a FreeBSD server. It was also prohibitive to get root or sudo access on the managing account. The solution was to compile PHP from source with fpm, run fpm on a UNIX socket and wire the specific domain which needed PHP7 through Nginx.
Compiling from source
Compiling PHP is pretty straightforward but you can easily forget crucial configure flags. First get the source archive. After trial and error, this appears to be "good enough" for Laravel 5.6 requirements.
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./configure -prefix=/home/foo/php7 --with-openssl --enable-mbstring --with-pdo-mysql --enable-fpm --with-config-file-path=/home/foo/php7 --with-config-file-scan-dir=/home/foo/php7 --with-iconv --with-gmp --with-gd |
Followed by
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make && make install |
copy php.ini-development file from source to the –with-config-file-path directory and call it php.ini. In PREFIX/bin confirm that php binary is loading your ini file by running
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./php --ini |
If you made a mistake in your configure run, you have to make clean first or the changed options won't be picked up.
Configuring fpm
In your PREFIX/etc folder, check php-fpm.conf. The only lines I bothered to verify and edit were pid, error_log and include, the rest can be left as is.
Inside folder php-fpm.d create a config file like my.subdomain.conf and add something like
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listen = /location/of/php-fpm.sock user = foo group = foo pm = dynamic pm.max_children = 5 pm.start_servers = 1 pm.min_spare_servers = 1 pm.max_spare_servers = 1 pm.max_requests = 200 listen.backlog = -1 pm.status_path = /status request_terminate_timeout = 30s rlimit_files = 131072 rlimit_core = unlimited catch_workers_output = yes env[HOSTNAME] = $HOSTNAME env[TMP] = /tmp env[TMPDIR] = /tmp env[TEMP] = /tmp |
You can study fpm config in great details but this is enough to get you going.
Now you can run your PHP7 fpm process in PREFIX/sbin with
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./php-fpm --fpm-config /prefix/etc/php-fpm.conf |
Since we don't have any init scripts in this case, we must be able to kill it also. Find it with
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ps aux | grep fpm |
and kill with
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kill -QUIT pid |
Make sure it says php-fpm: master process in the ps output, killing children doesn't do anything, just respawns them.
Now you just need to wire up your Nginx to use this fpm instead of the PHP5 system one by specifying
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fastcgi_pass unix:/location/of/php-fpm.sock; |
We now have PHP dualstack with some web apps running on system provided PHP5 and some on our own built PHP7. We did not need root for this process, except possibly for configuring Nginx.
One obvious downside is that you now have to take care of updating your PHP version on your own but that is one view we had to sacrifice. Updates should be relatively easy and fast since make install won't remove your config files in existing installation and compiling PHP takes just a few minutes.
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