How can one determine the size of an image using a URL in PHP?

To determine the size of an image using a URL in PHP, you can use the getimagesize() function. This function retrieves the size of an image and returns an array containing the dimensions and other information. You can then access the width and height values from the array to determine the size of the image. 

$url = 'https://example.com/image.jpg';
$image_size = getimagesize($url);

if ($image_size) {
    $width = $image_size[0];
    $height = $image_size[1];
    echo "Image dimensions: $width x $height pixels";
} else {
    echo "Unable to get image size.";
}

Keywords

PHP image size URL getimagesize() file_get_contents()

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