How to Handle Large File Uploads in PHP Beyond the 500MB Limit?

Handling Large File Uploads in PHP Surpassing 500MB Limit

When attempting to upload files larger than 500MB in PHP, you may face an issue with exceeding the default file size limitations. While increasing the upload size limit may seem like an intuitive solution, it has inherent challenges.

In your case, you've increased the post_max_size and upload_max_filesize directives in PHP.ini. However, memory consumption becomes a critical concern for handling large uploads. If the script requires significant memory to process the file, it may fail or consume all available resources.

Chunked Upload as an Alternative

A better approach for large file uploads is chunked upload. This method involves splitting the large file into smaller chunks and uploading them sequentially. On the server side, the chunks are reassembled to create the original file.

Benefits of Chunked Upload:

• Reduced memory consumption: Each chunk is processed separately, minimizing memory usage.
• Improved performance: Splitting and reassembling the file can be more efficient than handling the entire file at once.
• Resumable uploads: In case of interruptions (e.g., server failures), uploads can be resumed from where they left off.

Recommended Resources:

• [Handling Plupload's chunked uploads on the server-side](https://www.bramus.co/blog/2014/12/26/handling-pluploads-chunked-uploads-on-the-server-side/)
• [File uploads; How to utilize "chunking"?](https://stackoverflow.com/questions/2784044/file-uploads-how-to-utilize-chunking)

By implementing chunked upload, you can effectively handle large file uploads, overcome memory limitations, and improve the overall performance of your PHP application.

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