What are the limitations of using PHP to extract Exif data from AVCHD video files compared to image files?
When using PHP to extract Exif data from AVCHD video files, a limitation is that PHP's built-in functions for handling Exif data are primarily designed for image files and may not work correctly with video files. To overcome this limitation, you can use a third-party library or tool specifically designed for extracting Exif data from video files.
// Example using the exiftool command line tool to extract Exif data from an AVCHD video file
$videoFilePath = 'path/to/video.AVCHD';
$exifData = shell_exec("exiftool -j $videoFilePath");
// Parse the JSON output to access the Exif data
$exifDataArray = json_decode($exifData, true);
// Access specific Exif data fields
$cameraModel = $exifDataArray[0]['Model'];
$dateTimeOriginal = $exifDataArray[0]['DateTimeOriginal'];
echo "Camera Model: $cameraModel\n";
echo "Date/Time Original: $dateTimeOriginal\n";