Upper limit for Upload Limit and Post Limit in PHP

问题:

I have changed my upload and post limit options to 8000 M. However, when I try to import a table from a text file that's only 12.4 MB I get an error saying:

You probably tried to upload too large file. Please refer to documentation for ways to workaround this limit.

Is 8000 M to big?

回答1:

Be careful not to exceed the 32 bit signed integer limit (if you're using 32bit versions) as it will cause your script to fail.

http://www.php.net/manual/en/ini.core.php#ini.post-max-size

回答2:

First make sure to check these values in php.ini

max_execution_time

max_input_time

memory_limit

I would also lower your post_max_size and upload_max_size to a more reasonable level (like maybe 128 or 256M)

Also if you really need to get the data in, you could do it from the command line

mysql -u username -p database < dump.sql

回答3:

copy and pasted below from: http://daipratt.co.uk/importing-large-files-into-mysql-with-phpmyadmin/

It's how i overcome the exact same issue.

When trying to import large SQL files into mysql using phpmyadmin, the phpmyadmin documentation offers a few solutions, but I find the easiest method to overcome this is…

Find the config.inc.php file located in the phpmyadmin directory. In my case it is located here: ? 1
C:\wamp\apps\phpmyadmin3.2.0.1\config.inc.php

Find the line with $cfg['UploadDir'] on it and update it to: ? 1
$cfg['UploadDir'] = 'upload';

Create a directory called ‘upload’ within the phpmyadmin directory. ? 1 C:\wamp\apps\phpmyadmin3.2.0.1\upload\

Then place the large sql file that you are trying to import into the new upload directory. Now when you go onto the db import page within phpmyadmin console you will notice a drop down present that wasn’t there before – it contains all of the sql files in the upload directory that you have just created. You can now select this and begin the import.

If you’re not using WAMP on Windows, then I’m sure you’ll be able to adapt this to your environment without too much trouble.

回答4:

I believe the problem is that you have exceeded the 3.2 GB limit (8,000 MB) imposed by a 32 bit process, with PHP. As such, you likely can not use the full 8,000 MB as you have specified. I have had PHP hang on code when processing close to 2000 MB as memory to use with a 32 bit PHP.