The maximum file upload size limit for your WordPress installation depends on both your web server's configuration and WordPress settings. You must take care of both if you want to increase the limit. If you receive errors such as "The uploaded file exceeds the upload_max_filesize directive in php.ini", it usually means you need to increase the limit.
To increase the maximum file upload size in WordPress, you typically need to edit the "php.ini" file or the ".htaccess" file or the "functions.php" file of your active theme. Here's how you can do it:
Method 1: Editing php.ini:
The maximum file upload size can be directly increased in the "php.ini" file on your server if you have access to it.
Find the line that sets "upload_max_filesize" and "post_max_size". Increase the values to your desired file size limit. For example:
upload_max_filesize = 256M
post_max_size = 256M
max_execution_time = 300
Change 256M to the maximum file upload size you want, e.g., '512M' for 512 megabytes. Once the modification is made, save the php.ini file.
Method 2: Editing .htaccess
Also, you can increase the maximum file upload size by editing the .htaccess file in your WordPress installation directory. Add the following line:
php_value upload_max_filesize 256M
php_value post_max_size 256M
php_value max_execution_time 300
Replace 256M with your desired maximum file upload size limit. Save the .htaccess file after making the change.
Method 3: Editing theme's functions.php:
Add the following line of code to your active theme's functions.php:
@ini_set( 'upload_max_size' , '256M' );
@ini_set( 'post_max_size', '256M');
@ini_set( 'max_execution_time', '300' );
You can replace '256M' with the maximum file upload size you want. Save the functions.php file after making the change.
After making any of these changes, navigate to Tools > Site Health > Info in your WordPress admin dashboard to verify if the maximum file upload size has increased. To confirm the new limit, look for the entries under "Server" for "Upload max filesize" and "PHP post max size".
Note:
Remember that due to server resource limitations, you might not be able to increase the maximum file upload size in some shared hosting environments beyond a particular amount. You should ask for help from your hosting provider if you run into any problems or have any questions.