<![CDATA[Adding mcrypt extension]]>I need to add the mcrypt extension to a Lamp 7.4 app.

mcrypt was no longer included with PHP since PHP 7.2

I'm presuming I would have to create a custom app to add it to a Lamp 7.4 install. Please confirm or tell me otherwise.

Thanks.

]]>https://forum.cloudron.io/topic/5194/adding-mcrypt-extensionRSS for NodeTue, 14 Apr 2026 02:49:10 GMTFri, 04 Jun 2021 21:56:39 GMT60<![CDATA[Reply to Adding mcrypt extension on Tue, 22 Jun 2021 20:47:26 GMT]]>@nebulon you just run the update command(s)

]]>https://forum.cloudron.io/post/32958https://forum.cloudron.io/post/32958Tue, 22 Jun 2021 20:47:26 GMT<![CDATA[Reply to Adding mcrypt extension on Thu, 01 Jul 2021 22:21:52 GMT]]>@nebulon I think it would be helpful to mention in the "Installing custom PHP extensions" portion of the docs that pecl extensions are not supported. It would have saved me some time and frustration.

]]>https://forum.cloudron.io/post/32955https://forum.cloudron.io/post/32955Thu, 01 Jul 2021 22:21:52 GMT<![CDATA[Reply to Adding mcrypt extension on Tue, 22 Jun 2021 15:03:16 GMT]]>@nebulon Thanks. I guess this is my chance to create my first custom app.

]]>https://forum.cloudron.io/post/32953https://forum.cloudron.io/post/32953Tue, 22 Jun 2021 15:03:16 GMT<![CDATA[Reply to Adding mcrypt extension on Tue, 22 Jun 2021 14:46:50 GMT]]>@Shai the lamp package is currently not setup to deal with pecl extension installation, various required paths are read-only in the app, so this will currently not work.

Not sure if this is something we should support from an app package perspective or as mentioned the better way is to create a custom app. Main concern for me is, how there things get updated/recompiled when we push an lamp update as such.

]]>https://forum.cloudron.io/post/32950https://forum.cloudron.io/post/32950Tue, 22 Jun 2021 14:46:50 GMT<![CDATA[Reply to Adding mcrypt extension on Mon, 21 Jun 2021 20:29:41 GMT]]>@subven thanks.

I followed the instructions Lamp App - Installing custom PHP extensions. I was not able to get mcrypt installed that way.

Mcrypt is a pecl extension. Pecl is installed. In the app terminal I ran
pecl and it returned Failed loading /app/data/mcrypt/mcrypt.c: /app/data/mcrypt/mcrypt.c: invalid ELF header.

If I run pecl install mcrypt
I get

Failed loading /app/data/mcrypt/mcrypt.c:  /app/data/mcrypt/mcrypt.c: invalid ELF header
WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
Cannot install, php_dir for channel "pecl.php.net" is not writeable by the current user
root@4b54a6f7-bd10-4898-a1a8-6c13ffb94a11:/app/data#

Any ideas?

Thanks.

]]>https://forum.cloudron.io/post/32939https://forum.cloudron.io/post/32939Mon, 21 Jun 2021 20:29:41 GMT<![CDATA[Reply to Adding mcrypt extension on Sat, 05 Jun 2021 00:04:52 GMT]]>Have you tried installing it on your own? Please see Lamp App - Installing custom PHP extensions 🙂

]]>https://forum.cloudron.io/post/32437https://forum.cloudron.io/post/32437Sat, 05 Jun 2021 00:04:52 GMT