Strange PHP file upload problem

PHP
1

Hello,
i have a form on a 3 years old website which consists of 30 file fields and a submit button. Sometimes i use all the fields to upload 30 images or only one (e.g field no 15) to upload one image etc.

This form works for 3 years on the same server with PHP5. A few days ago no files from field 21-30 are uploaded. If i put a single file on field 1 it gets uploaded, if the same file is put on field 25 nothing happens.

I run

print_r($FILE)

and only the first 20 field file variables are passed.

My php.ini configuration is :

memory limit 128M
max_execution_time 3000
max_input_time 60

Is there any value in the php configuration or something else that might have caused the $FILE variable to have a limited size?

2

The error log should help you to find out the cause of the problem.

3

unfortunally there is no error log, any other idea :frowning:

4

Not even the apache error log?

Failing that, I would want to find out what changed on the server?

5

that’s weird that it stops exactly at 20. I would do a find in my phpini for the number ‘20’. Dunno if you will uncover anything but this method helped me find a timeout problem on a site when it was timing out exactly at 6 seconds. Did a search for ‘6’ bam, there was the setting I needed to change.

6

I suspect that the server itself is not at fault.

If i put a single file on field 1 it gets uploaded, if the same file is put on field 25 nothing happens

Is the PHP code retrieving all of the fields?

7

Thanks for pointing me to the apache log file. There was the error “PHP Warning maximum number of allowable file uploads has been exceeded in Unknown on line 0”

which i found out is a new directive max_file_uploads in php.ini since php 5.3.1. Guess what the default value is … :slight_smile: yes 20 files. So i added max_file_uploads=30 to php.ini and everything is working.

Thanks

8

Well done, and thanks rustybuddy for the advice to search the config file for the magic number.