How can I change the Maximum upload file size? I would like to be able to upload 10Mb at a time.
This is due to the PHP limitations on file size uploads. If you have access to your php.ini file, you can modify the following lines:
upload_max_filesize = 10M
post_max_size = 10M
max_execution_time = 300
If you don't have access to the php.ini file (such as a hosting situation), you may need to contact your webhost and see if they will increase it for you. I have also seen users create a php.ini file with just these values and place it in the file where WordPress is installed. If your PHP instance allows for "inherited configurations" it will allow these local settings to override the global.
The other solution would be to add the code dynamically into WordPress to make this change for you. This article has a nice way of doing it through a "plugin". I've seen dubious results from this approach (some report success, some report no success) so I can't say for sure if it will work for you.
I had the issue where I couldn't update/add to the php.ini file. I ended up adding the following lines to my .htaccess file to change the upload size:
php_value upload_max_filesize 5M
php_value post_max_size 5M
php_value max_execution_time 200
php_value max_input_time 200
That changes the upload limit to 5, and allows extends the timeout time while uploading larger files.
If the above solutions are not working, then you can go with this .only you have to find the php.ini file in /etc or root folder.
Find php.ini file in /etc folder or / folder by running below cmd:
grep -rl "post_max_size" | xargs ls -lrth
Here I have used the post_max_size keyword to search the "php.ini" file in /etc folder ,but in some systems you can find this on /var/www/html or /var/www/wordpress folders.
We have multiple posts on the internet as if the php.ini file is not present in the WordPress folder then you can create but in my case that doesn't work.
Edit the php.ini file and change the value like this.
post_max_size = 100M
upload_max_filesize = 100M
In the above, you can set any value as per your requirement.
Restart the httpd or Nginx or apache and PHP service, or as per setup, you can restart the web service.
For me httpd and php-fpm service restart worked in centos 8:
service httpd restart
service php-fpm restart