Install Composer on Synology

Here is how to install Composer on a Synology, required among other to install various php applications available on GitHub, like the “Simple SPK Server“.

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To install Composer, the following extensions must be loaded into php: curl, openssl and phar.

Connect into your DSM, open the Web Station via the Main Menu and enter the PHP Settings. There, select first the “PHP version” = “PHP 5.6”, tick the Extensions: curl, openssl and phar, and click Apply. Next, do the same for the “PHP version” = “PHP 7.0”.

WebStation Composer Option

Configuring extensions for php as illustrated above is only valid for the WebStation.

Open a SSH Console via Putty, log in as an administrator and enter next the root mode.

To load extensions into php, their respective php.ini file must be updated manually (Ex.: Edit them from a SSH console using VI). Path to php.ini are:

  • php70: /usr/local/etc/php50/php.ini
  • php73: /usr/local/etc/php73/cli/php.ini

In php ini, under the section [PHP] add the following lines

extension =
extension =
extension =

To install Composer, use following commands:

cd /usr/local/bin
curl -s | php70

This should display the following message:

All settings correct for using Composer

Composer (version 1.3.1) successfully installed to: /usr/local/bin/composer.phar
Use it: php composer.phar

On Synology, php is not the command to use to run Composer. Instead, one should use php56 or php70. Ex.:

php70 composer.phar –version

To make use of it more easily, you can create a script. Use the command vi

vi composer

Enter the modification mode by typing the letter “i”.

Type the following text:

php56 /usr/local/bin/composer.phar $*

Press ‘Esc’ to quit the modification mode.

To write the changes and quit vi, type next “:wq” (without the quotes).

Make the script executable with the following command:

chmod +X composer

Try now:

composer –version

Et voilà.


  • The following command can also be used to install ‘composer’ with the ‘php’ command: curl -sS | php — –install-dir=/usr/local/bin –filename=composer
  • The following command can be used to update ‘composer’ : sudo composer self-update





6 responses to “Install Composer on Synology”

  1. MJ Avatar

    Just in case somebody has the same experience I had: For me this to work I had to follow
    Here is what I did:

    First I followed your instructions to the letter (enabled phar, as curl and openssl were already enabled. For both php 5.6 and 7.0) first, but on the command line, gave me errors:

    root@NAS:~# cd /usr/local/bin
    root@NAS:/usr/local/bin# curl -s | php56
    Some settings on your machine make Composer unable to work properly.
    Make sure that you fix the issues listed below and run this script again:

    The phar extension is missing.
    Install it or recompile php without –disable-phar


    So I tried instead the instructions in this post

    and here is the result:

    root@NAS:/usr/local/bin# curl -sS | php — –install-dir=/usr/local/bin –filename=composer
    All settings correct for using Composer

    Composer (version 1.6.3) successfully installed to: /usr/local/bin/composer
    Use it: php /usr/local/bin/composer

    root@NAS:/usr/local/bin# composer –version
    Do not run Composer as root/super user! See for details
    Composer version 1.6.3 2018-01-31 16:28:17

    Hope this helps others that may experience the same. Cheers!

    DS3615xs, DSM 6.1DSM 6.1.5-15254 Update 1

    1. Valery Letroye Avatar

      Thx for posting this feedback!

  2. Eric H. Bowen Avatar
    Eric H. Bowen

    My Composer installation is unable to install patches. I get the output, “sh: patch: command not found”. Apparently there’s a missing CLI ‘patch’ command that Composer is looking for. Do you know where I can find it and how to install it on a Synology RackStation (current firmware)?

    1. Valery Letroye Avatar

      Alas no, I have no experience at all with installing patches.

  3. Donald Avatar

    When I install this, I haven’t yet, but when I do, do I have to install it for every version of php I have installed on my Synology NAS? I currently have all four available versions installed, php 5.6, 7.0, 7.2, 7.3.

    Thanks in Advance! 🙂

    1. Valery Letroye Avatar

      No. You have to install it only once, with one version of PHP.

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