Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I need to reload my php.ini and there's nothing in the help dialog about restarting it.

share|improve this question

11 Answers 11

up vote 150 down vote accepted

Note: prepend sudo if not root

  • Using SysV Init scripts directly:

    /etc/init.d/php-fpm restart    # typical
    /etc/init.d/php5-fpm restart   # debian-style
    /etc/init.d/php7.0-fpm restart # debian-style PHP 7
  • Using service wrapper script

    service php-fpm restart    # typical
    service php5-fpm restart   # debian-style
    service php7.0-fpm restart # debian-style PHP 7
  • Using Upstart (e.g. ubuntu):

    restart php7.0-fpm         # typical (ubuntu is debian-based) PHP 7
    restart php5-fpm           # typical (ubuntu is debian-based)
    restart php-fpm            # uncommon
  • Using systemd (newer servers):

    systemctl restart php-fpm.service    # typical
    systemctl restart php5-fpm.service   # uncommon
    systemctl restart php7.0-fpm.service # uncommon PHP 7

Or whatever the equivalent is on your system.

share|improve this answer
none of those worked – Galen Oct 12 '10 at 14:30
For Googlers (such as myself) arriving here: this answer was correct, but on my system it was named 'php5-fpm', so service php5-fpm restart did the trick. – Matt Winckler Feb 1 '11 at 17:03
What about on a Mac? php-fpm was installed using homebrew. which php-fpm gives /usr/local/sbin/php-fpm. – hobbes3 Mar 16 '13 at 23:06
@hobbes3 try brew services restart php56 (if you get an error about no available formula, try a different version e.g. php5 or php55). If you don't have brew services installed, it should install it for you on the first run. – Doktor J Dec 21 '15 at 22:22
I needed this one: sudo service php7.0-fpm restart – Ryan Feb 12 at 19:16

For Mac OS X, this is what I do:

Make a script /usr/local/etc/php/fpm-restart:


echo "Stopping php-fpm..."
launchctl unload -w ~/Library/LaunchAgents/homebrew-php*.plist

echo "Starting php-fpm..."
launchctl load -w ~/Library/LaunchAgents/homebrew-php*.plist

echo "php-fpm restarted"
exit 0


chmod ug+x /usr/local/etc/php/fpm-restart
cd /usr/local/sbin
ln -s /usr/local/etc/php/fpm-restart

make sure /usr/local/sbin is in your $PATH

then just call it from the terminal fpm-restart and BOOM!!

share|improve this answer
Use homebrew.mxcl.php*.plist if it doesn't work – Daniil Ryzhkov Aug 11 '15 at 20:21

Usually, service php5-fpm restart will do fine, on an up-to-date distribution.

But somtimes, it fails, telling you restart: Unknown instance: (or such).

Now, if you do not like to reboot your server, just kill the processes and have a fresh start (edited as of here):

$ sudo pkill php5-fpm; sudo service php5-fpm start
share|improve this answer

This should work:

pkill -o -USR2 php-fpm
pkill -o -USR2 php5-fpm
share|improve this answer
If you installed PHP-FPM via homebrew on a Mac, the first command works a lot better than unload+load'ing the plist – alanthing Jul 19 '13 at 21:01
OSX: killall php-fpm – ptim Aug 22 '14 at 14:28
On OSX the above gave me an error "Unknown user SR2". Reversing the arguments fixed it: "pkill -USR2 -o php-fpm" – Keeth Jan 9 '15 at 11:44
Exactly what I needed to restart FPM in a container, thanks! – Adrian Günter Oct 27 '15 at 0:32

For Mac OSX brew services restart php56 worked for me.

share|improve this answer

For me I had just upgraded via apt and the service restart wasn't working. I ended up needing to kill the existing processes before it worked using: killall php5-fpm

share|improve this answer

To allow the PHP-FPM restart script to work, you must use specify a PID file in your php-fpm.conf file. i.e.

pid = /var/run/php-fpm/

The default value for pid in php-fpm.conf is nothing, which means to not create a PID file, which means that the restart script can't tell which process to end during the restart.

share|improve this answer

php-fpm will restart if you send a USR2 signal to the main process:

sudo kill -USR2 php-fpm_main_process_id

So we just need to instruct php-fpm to record its pid somewhere. In this example, I'll assume you want to save it at /etc/private/, and that php-fpm runs as user _php. First, add this line to the configuration file:

pid = /etc/

Then create the file /etc/, and make sure php-fpm has permission to modify it:

$ cd /etc
$ sudo touch
$ sudo chown _php
$ sudo chmod 644

Now, next time php-fpm starts, you'll be able to get its pid and restart it like this:

$ cat /etc/
$ sudo kill -USR2 815

Or you can combine these into a single command:

$ sudo kill -USR2 `cat /etc/private/`
share|improve this answer

On Windows:

  1. Open Services in the Management Console:

    Start -> Run -> "services.msc" -> OK
  2. Select php-fpm from the list

  3. Rightclick and select restart
share|improve this answer

For old versions of debian & ubuntu - php 5.6 it will be

 /etc/init.d/php-fpm56 restart
 service php-fpm56 restart
share|improve this answer

On CentOS 7

sudo systemctl enable php-fpm // Just incase is disabled. Also ensures it starts automatically with the server

sudo systemctl start php-fpm  // Start the service

sudo systemctl stop php-fpm   // Stop the service

sudo systemctl status php-fpm  // View status
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.