What are some alternative methods to get the dimensions of an image if Getimagesize only works with a file path in PHP?

Getimagesize function in PHP only works with a file path, so if you have an image stored in a variable or retrieved from a URL, you cannot directly use this function to get its dimensions. One alternative method is to use the PHP GD library to create an image resource from the image data, and then use functions like imagesx and imagesy to get the dimensions. Another method is to use the getimagesizefromstring function, which can directly get the dimensions of an image stored in a variable.

// Method 1: Using GD library
$imageData = file_get_contents('https://example.com/image.jpg');
$imageResource = imagecreatefromstring($imageData);
$width = imagesx($imageResource);
$height = imagesy($imageResource);
echo "Width: $width, Height: $height";

// Method 2: Using getimagesizefromstring
$imageData = file_get_contents('https://example.com/image.jpg');
$size = getimagesizefromstring($imageData);
$width = $size[0];
$height = $size[1];
echo "Width: $width, Height: $height";