Error The form submission is incomplete. Perhaps the form size exceeds configured server or browser

I see you have had queries in the past about this error - without being able to provide a cause or solution.

I have now come across it for the first time - trying to add a second user produces this error.

I have another zenphoto database and app installed in the same web site - it has no problem with adding more users, so the message is not one appropriate to the error, whatever that might be.

Your help would be appreciated.

Thank you,

Zenphoto version 1.5.8b (Official build)
Current locale setting: en_US.UTF8
Current gallery theme: zpBase
Server software: Apache
PHP version: 7.4.13
MySQLi version: 5.7.32


  • This is caused when the volume of items in a POST exceeds the size limits placed by PHP. IN this case there are too many fields (for the configuration) when you add the user. If you really are going from one user to two users you must have a very small limit.

    Please see default, the maximum upload,the upload_max_filesize and post_max_size directives.
    for how to change this limit.

  • the php settings you mention above are
    post_max_size 32M
    upload_max_filesize 20M

    As explained (but perhaps not too clearly) I have two Zenphoto installations on the same web site:
    both sites use the same php.ini file which is set further up.

    With the postcards site I can, and have, created several users without any problem.

    On the bibles site, however, I get the above error when trying to create a second user.

    To me this appears to rule out any problem with the php.ini settings that you mention.

    Thank you,

  • acrylian Administrator, Developer
    edited January 5

    If this is really the same server (not "website", each install is a website, just to define some terms to avoid confusion) and the same Zenphoto version with the same configuration, I really have no idea why it would any different behaviour. 32M should really be enough for two users.
    A plain user account does not submit that much data. Do you perhaps have some managed albums selected unnecessarily or perhaps a lot of these? That is the only thing that comes to mind that could increase the POST data submitted.

  • acrylian Administrator, Developer

    Forgot there is also another value that might be involved triggering submission issues: max_input_vars. Although I don't thinks two users exceed any "normal" configuration. I mean I primarily install ZP on various standard shared servers and never saw this.

    If one user works I suggest to change the option to only show one user per page.

  • RichardB Member
    edited January 6

    This was solved by increasing
    memory_limit to 80M
    post_max_size to 70M
    upload_max_filesize to 50M
    max_input_vars to 2000

    don't know whether it was just one of those or the combo - don't have the time to experiment!!


  • acrylian Administrator, Developer

    I would guess it was a combination of several of them. Still not understanding why this exceeded on your install with just two users…

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