How can PHP functions like getimagesize() be utilized effectively in image processing tasks?

To utilize PHP functions like getimagesize() effectively in image processing tasks, you can use it to retrieve information about an image such as its dimensions, type, and MIME type. This information can then be used to perform various image processing tasks such as resizing, cropping, or displaying the image.

// Example of using getimagesize() to retrieve image information
$image_path = 'image.jpg';
$image_info = getimagesize($image_path);

// Displaying image dimensions
echo 'Image width: ' . $image_info[0] . ' pixels<br>';
echo 'Image height: ' . $image_info[1] . ' pixels<br>';

// Displaying image type and MIME type
echo 'Image type: ' . $image_info[2] . '<br>';
echo 'Image MIME type: ' . $image_info['mime'] . '<br>';