Break HTTP file uploading from server side by PHP or Apache

Question

When uploading big file (>100M) to server, PHP always accept entire data POST from browser first. We cannot inject into the process of uploading.

For example, check

Answer 1

Use javascript. Submit a pre-form via ajax when user clicks submit, wait for the ajax response, then when it comes back successful or not, submit the actual form. You can also have a fallback to the method you don't want which is better than nothing.

    
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