Guide on running these versions with apache (mod php)

[aszenz]

Any idea on how we could use these old php version (5.5) on apache

[drupol]

Hi !

AFAIK, we don't maintain 5.5, we start at 5.6.

[aszenz]

Hi !

AFAIK, we don't maintain 5.5, we start at 5.6.

Ok, 5.6 is also fine for us.

[drupol]

First you need to add the overlay of this flake in your own configuration.

In the whole process, this is probably the most complex part. An overlay is just the default standard mechanism to extends pkgs in Nix by adding a layer on top of your configuration so that when you do pkgs.php56, it works.

Then, once it's done, a quick search on Google led me to https://nixos.wiki/wiki/PHP, where I can see a snippet related to Apache.

You would just need to replace pkgs.php with pkgs.php56 and it should be good to go.

[aszenz]

First you need to add the overlay of this flake in your own configuration.

In the whole process, this is probably the most complex part. An overlay is just the default standard mechanism to extends pkgs in Nix by adding a layer on top of your configuration so that when you do pkgs.php56, it works.

Then, once it's done, a quick search on Google led me to https://nixos.wiki/wiki/PHP, where I can see a snippet related to Apache.

You would just need to replace pkgs.php with pkgs.php56 and it should be good to go.

Could I point an ubuntu installed apache server to use this nix php binary (maybe by just hardcoding the path in nix store)

[drupol]

Technically it should work, but using raw /nix/store/... paths is a bad practice since it can be garbage collected.
I would simply recommend you to add it to your profile using nix profile so now your can be sure that it will never be GC'd.

❯ nix profile install github:fossar/nix-phps#php56
❯ php -v
PHP 5.6.40 (cli) (built: Jan  9 2019 10:25:59) 
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
   with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
❯ type php
php is /home/pol/.nix-profile/bin/php
❯          

[aszenz]

Technically it should work, but using raw /nix/store/... paths is a bad practice since it can be garbage collected. I would simply recommend you to add it to your profile using nix profile so now your can be sure that it will never be GC'd.

❯ nix profile install github:fossar/nix-phps#php56
❯ php -v
PHP 5.6.40 (cli) (built: Jan  9 2019 10:25:59) 
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
   with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
❯ type php
php is /home/pol/.nix-profile/bin/php
❯          

Perfect, so apache would just call nix php automatically since it's on the path

[drupol]

If there are no other php on your system and if the user running apache is the same user who run nix profile, yes.

[aszenz]

If there are no other php on your system and if the user running apache is the same user who run nix profile, yes.

Seems like mod-php embeds php within apache, and doesn't call cli process at all, so this idea wouldn't work

[jtojnar]

In theory, it should be possible but unless Apache has stable ABI for modules, you would probably also need to ensure that the PHP is linked against the same version of Apache as the one you are running (and possibly other parameters).

I think at that point it would be easier to replace the Ubuntu’s Apache with a one from Nixpkgs.

[aszenz]

In theory, it should be possible but unless Apache has stable ABI for modules, you would probably also need to ensure that the PHP is linked against the same version of Apache as the one you are running (and possibly other parameters).

I think at that point it would be easier to replace the Ubuntu’s Apache with a one from Nixpkgs.

Yes but does nixpkgs apache have older versions of mod-php?

[jtojnar]

No. But that is what this repo is for.

[aszenz]

No. But that is what this repo is for.

Ok, so older modphp versions can be added to this flake?

[jtojnar]

If you want to to run Apache from Nix, you are best off looking at the relevant NixOS module. For example, this is how you get PHP with mod_php:

https://github.com/NixOS/nixpkgs/blob/8a3e1cf40a6eaeb122c8321b97a0518cfa6ed779/nixos/modules/services/web-servers/apache-httpd/default.nix#L21

[aszenz]

If you want to to run Apache from Nix, you are best off looking at the relevant NixOS module. For example, this is how you get PHP with mod_php:

https://github.com/NixOS/nixpkgs/blob/8a3e1cf40a6eaeb122c8321b97a0518cfa6ed779/nixos/modules/services/web-servers/apache-httpd/default.nix#L21

Yes, but can i replace the php version in them to older ones like 5.6

[jtojnar]

Sure, just do as mentioned above #325 (comment)