Images In PHP

Ben

Hey,

Does anybody know a way of validating an a URL to check that it is a proper image URL.

So it will pass if for instance http://domain.com/images/image.jpg

But will fail if someone types in http://skjdhfsdhf

Thanks,
Ben Very Happy

comp615

Yeah what you can do is get the address in $var...then assuming you wanted to make sure it was a .jpg you could do:
if(eregi(".jpg"$,$var)) {
echo "Its a jpg";
} else {
echo "thats not a jpg";
die();
}

to include .gif and .png you can replace .jpg with each and use or statements or ||

Ranfaroth

That's wrong.

To check if the resource is an image, you have to parse the HTTP headers, to read the media type.
http://example.org/test.jpg can perfectly be a text file, and http://exmple.org/test.exe can perfeclty be an PNG image Rolling Eyes

So, you have to use fsockopen to connect to the webserver, make your HEAD request, and read the Content-Type answer.