Increase File Upload Size Limit In PHP-Nginx

If Nginx aborts your connections when you upload large files, you will get “[error] 25556#0: *52 client intended to send too large body:” error. Means you will need to increase PHP file-upload size limit. Follow the below steps to do this.

Change in php.ini

For example change max file upload size 50MB.

Edit…

vim /etc/php5/fpm/php.ini

Set…

upload_max_filesize = 50M
post_max_size = 50M

Notes: Technically, post_max_size should always be larger than upload_max_filesize but for large numbers like 50M you can safely make them equal.

Change in Nginx config

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

http {
	#...
        client_max_body_size 50m;
	#...
}

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

Reload PHP-FPM & Nginx

# service php5-fpm reload
# service nginx reload

Changes in WordPress-Multisite

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.

Thanks:)