Changing the PHP upload_max_filesize limit with CloudLinux in cPanel

Check the size and type of the file, your available disk space and the application's own upload policy. Back up important data before using a large import file. Prefer the application's supported CLI or staged import process when browser uploads are unsuitable.

1. In cPanel, search for Select PHP Version and open the CloudLinux tool. It is commonly listed under Software. Select the intended domain if your installation displays a domain selector.
2. Check the active PHP version and which websites the selector change will affect. cPanel may also offer MultiPHP Manager and MultiPHP INI Editor. These tools manage a different PHP configuration path. Identify whether the domain uses CloudLinux Alt-PHP or a native EasyApache PHP handler before editing.
3. Open Options and locate upload_max_filesize. Choose the required value within your service's limits and save.
4. Set post_max_size high enough for the whole request, including all files and form overhead. For example, a permitted 32 MB file needs a request allowance greater than 32 MB. These are examples, not plan allowances.
5. Check application-level limits, then upload a small test file and a representative larger file. Use non-sensitive test material and remove it afterward.

Confirm that the application reports the expected permitted size and that the upload reaches its destination intact. Compare the saved file size with the source and test that the application can open or process it.

An HTTP 413 response can come from a web server, proxy or CDN before PHP receives the request. Empty form data can indicate a request larger than post_max_size. Check temporary storage, timeout and quota errors before increasing values again. Ask support about restrictions that are not exposed to your account.

• Changing PHP versions, extensions and application limits
• Uploading and managing website files in the Account Manager
• Understanding CPU, RAM, storage, inodes and data transfer
• Changing the PHP post_max_size limit with CloudLinux in cPanel
• Configuring allow_url_fopen with CloudLinux in cPanel

• CloudLinux: PHP Selector for users
• PHP: core configuration directives