Amazon S3 StreamWrapper fread Issue In PHP

Question

I am using amazon s3 API and setting the client to read as stream. It is working fine for me to use file_get_contents("s3://{bucket}/{key}"), which read the full data for the file(I am using video file & testing on my local system). However, I am trying to optimize the memory used by the script and thus trying to read and return data by chunk as below:

$stream = @fopen("s3://{bucket}/{key}", 'r');
$buffer = 1024;
while(!feof($stream)) {
            echo  @fread($stream, $buffer);
            flush();
        }

This is not working on my local system. I am just wondering what might be the issue using this technique. by searching, I found that this is also a very widely used technique. So, if anybody can please give any suggestion about what might be wrong here or any other approach, I should try with, it will be very helpful. Thanks.

Answer 1

OK, finally got the solution. Somehow, some other output are being added to buffer. I had to put:

ob_get_clean();
header('Content-Type: video/quicktime');

In this way to clean anything if were added. Now its working fine.

Thanks Mark Baker for your valuable support through the debugging process.