You can modify PHP's upload_max_filesize as per your needs using CloudLinux's PHP Selector in Plesk.
1. Log in to your Plesk account.
2. Click on the Pull icon in the right sidebar and choose PHP Selector.
3.Under the Account Global Settings, go to the Optionstab.
Note: If it shows an error related to the Native PHP version, change to a non-Native PHP version first.
4. Look for upload_max_filesize and click on the drop-down option displayed in front of it. Then choose the appropriate limit as per your requirements.
A message will appear stating that the maximum upload file size has been changed.
You have successfully increased the upload_max_filesize value using the CloudLinux Selector in Plesk.
