Change the PHP maximum upload file size limit
This article explains how to change the maximum upload file size for PHP contents by utilizing the upload_max_filesize and post_max_size orders in a .htaccess document.
You may need to change the maximum upload file size for your site. But for security reasons, you must set a lower value to keep clients from uploading very large documents to your site. To do this, change the upload_max_filesize and post_max_size orders in .htaccess file.
Sign in to your cPanel and locate your .htaccess file under public_html and add below lines:
php_value upload_max_filesize 256M php_value post_max_size 256M
To ensure that uploads work accurately, the post_max_size should be a little large than upload_max_filesize. For example, you can set the upload_max_filesize to 100M, and the post_max_size order to 102M.
Save to the .htaccess records and check your WordPress.
Change PHP Maximum Upload Size Using .user.ini -
If you are not able to increase maximum upload file size using .htaccess then probably the server you are using configured for .user.ini. Create a file .user.ini under public_html and add below lines:
upload_max_filesize = 256M post_max_size = 256M
You can also verify using phpinfo function, make a PHP test file that contains the below code in a similar index where the .htaccess record is found:
Load the test file in your internet browser, and afterward check for the name of the value.