Increase file upload size limit in PHP-Nginx

If Nginx aborts your connection when uploading large files, you will see something like below in Nginx’s error logs:

[error] 25556#0: *52 client intended to send too large body:

This means, you need to increase PHP file-upload size limit. Following steps given below will help you troubleshoot this!

To change max file upload size to 100MB

Edit…


			vim /etc/php5/fpm/php.ini

Set…

			upload_max_filesize = 100M
post_max_size = 100M

Technically, post_max_size should always be larger than upload_max_filesize but for large numbers like 100M you can safely make them equal.
There is another variable max_input_time which can limit upload size but I have never seen it creating any issue. If your application supports uploads of file-size in GBs, you may need to adjust it accordingly. I am using PHP-FPM behind Nginx from very long time and I think in such kind of setup, its Nginx to which a client uploads file and then Nginx copies it to PHP. As Nginx to PHP copying will be local operation max_input_time may never create issue. I also believe Nginx may not copy the file but merely hand-over the location of file or descriptor records to PHP!

Add following line to http{..} block in nginx config:

			http {
	#...
        client_max_body_size 100m;&lt;/strong>
	#...
}
		
			
		

Note: For very large files, you may need to change value of client_body_timeout parameter. Default is 60s.


			service php5-fpm reload
service nginx reload

If you are running WordPress Multisite setup, then you may need to make one more change at the WordPress end.

Go to: Network Admin Dashboard >> Settings. Look for Upload Settings

Also change value for Max upload file size

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