How can PHP be used to verify the completeness and correctness of JPG files?

To verify the completeness and correctness of JPG files in PHP, you can use the `getimagesize()` function to check if the file is a valid image and get its dimensions. Additionally, you can use the `exif_imagetype()` function to determine the image type based on its header. By combining these two functions, you can verify if the JPG file is complete and correct. 

$filename = 'example.jpg';

if (exif_imagetype($filename) == IMAGETYPE_JPEG) {
    $image_info = getimagesize($filename);
    
    if ($image_info !== false) {
        echo "JPG file is complete and correct.";
    } else {
        echo "JPG file is incomplete or incorrect.";
    }
} else {
    echo "File is not a valid JPG image.";
}

Keywords

PHP image processing file validation JPG files error handling

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