How to Configure PHP for Large File Uploads: What Settings Need to Be Adjusted?

Determining Upload Limits for Large Files in PHP

PHP provides mechanisms to control the maximum upload size of files. Understanding the relevant configuration options is crucial for handling large file uploads effectively.

Configuration Options for Upload Limits

To enable the upload of ~100 MB files, the following PHP configuration options need to be adjusted in the php.ini file:

• upload_max_filesize: Specifies the maximum allowed size for uploaded files. Set this to 100M or a larger value to accommodate files of that size.
• post_max_size: Determines the maximum size of the HTTP POST data, which includes the file data. Ensure this value is greater than or equal to upload_max_filesize.
• max_input_time: Sets the maximum execution time for processing an uploaded file. This is important for large files that may take time to upload.

Additional Considerations

In some cases, the Apache configuration may also need to be modified to support large file uploads:

• LimitRequestBody: This setting limits the request body size, which includes the file data. It should be set to a value larger than the post_max_size in php.ini.

Applying the Changes

After updating the configuration, restart the PHP web server to apply the changes. The maximum upload size should now allow for files of the desired size to be uploaded successfully.

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