SMF 2.0.17 - Can only add 20 attachments at a time

[GL700Wing]

I've done some testing on an SMF 2.0.17 forum with no mods installed and discovered that if the value for the maximum number of attachments allowed per post is set to '0' (ie, unlimited) or to a number greater than '20' only 20 attachments are actually attached to a new/modified post at a time when it is previewed/saved.  However, I also discovered that it is actually possible to attach more than 20 files to a new/modified post by previewing the new/modified post after the first 20 files have been attached and then attaching more files in groups of 20 up to the maximum number of attachments allowed.  There are no error messages displayed or logged ...

Also, and as per the code in ./Sources/Post.php, only 50 attachments per post are allowed when the value is set to '0' (ie, unlimited) so it's not actually unlimited.
./Sources/Post.php

Code Select Expand

$context['num_allowed_attachments'] = empty($modSettings['attachmentNumPerPostLimit']) ? 50 : min($modSettings['attachmentNumPerPostLimit'] - count($context['current_attachments']) + (isset($deleted_attachments) ? $deleted_attachments : 0), $modSettings['attachmentNumPerPostLimit']);

[vbgamer45]

In PHP there is a setting called  max_file_uploads  which defaults to 20
The maximum number of files allowed to be uploaded simultaneously. Starting with PHP 5.3.4, upload fields left blank on submission do not count towards this limit.

[GL700Wing]

In PHP there is a setting called  max_file_uploads  which defaults to 20
The maximum number of files allowed to be uploaded simultaneously. Starting with PHP 5.3.4, upload fields left blank on submission do not count towards this limit.

Thanks so much for your quick response - I was able to increase the value via cPanel (although I could have added an entry to the php.ini file) and I can now attach more than 20 files at a time.

[vbgamer45]

Glad to help

[Arantor]

I believe this is different in 2.1 where it uses AJAX to upload so it's not subject to the same limit.