Does getimagesize use an extra HTTP request or can it find out the size remotely?
NOTE: The image is external
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Does getimagesize use an extra HTTP request or can it find out the size remotely?
NOTE: The image is external
There will always be at least one HTTP request; otherwise how will it know what you’re looking for?
If you’re asking whether or not it’ll download the file – yes, it will. There’s no HTTP header that specifies image dimensions, so it doesn’t know until the file is downloaded.