What are some common methods in PHP to extract meta-information from images?

To extract meta-information from images in PHP, you can use the getimagesize() function to retrieve details such as image width, height, MIME type, and more. Another method is to use the exif_read_data() function to extract EXIF data from the image, which includes information like camera settings, GPS coordinates, and timestamps. 

// Using getimagesize() to extract image meta-information
$imagePath = 'image.jpg';
$imageInfo = getimagesize($imagePath);

echo 'Image Width: ' . $imageInfo[0] . 'px';
echo 'Image Height: ' . $imageInfo[1] . 'px';
echo 'Image Type: ' . $imageInfo['mime'];

// Using exif_read_data() to extract EXIF data
$exifData = exif_read_data($imagePath);

if(!empty($exifData)) {
    echo 'Camera Model: ' . $exifData['Model'];
    echo 'Date Taken: ' . $exifData['DateTime'];
    echo 'GPS Coordinates: ' . $exifData['GPSLatitude'] . ', ' . $exifData['GPSLongitude'];
}

Keywords

PHP image processing getimagesize exif_read_data metadata extraction

Related Questions