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I am developing application in PHP which takes video file. I am giving serverside validation ($_FILES['file']['type']) that receive only .MP4 files.
If i upload any MP4 file from Firefox browser then file type is ‘application/octet-stream’ and if i upload same file from Google Chrome then file type is 'video/mp4'.
If i upload any FLV file from Firefox then file type is also 'application/octet-stream' then how can i identify the file type of that video?
Have you tried using the file info library?
finfo_file()http://www.php.net/manual/en/function.finfo-file.php
it has a sister function
mime_content_type()http://www.php.net/manual/en/function.mime-content-type.php