ahh the limitations of technology. who knew that flash would be the solution? what an unlikely bedfellow.
On Wed, Mar 5, 2008 at 1:40 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > Hi all, > > I've had lots of run-ins with this sort of problem - lol - and > basically ... > > 1: PHP cannot determine anything about a file until it has it on the > server > 2: Javascript can create an object, and fill it, and then check the > size BUT the file also needs to be on the server > > which just leaves Flash - which kind of does the same thing, it uses > actionscript to 'replace' the contents of a movie clip with the image > and then waits till its loaded and then asks how big it is > (dimensions). Flash is the only known way to get any dimension related > information from an image before it is uploaded. > > What most people do is let clients upload an image and then use php to > delete it (or GD library to modify it) if it doesnt meet your > criteria. Unfortunately this means that clients can still innocently > upload a HUGE image straight off their camera etc and have to wait for > the upload process to complete before you can let them know it was all > for nothing :-( > > Since flash can talk to javascript, the best way is to write a generic > flash file that javascript can call - get the dimensions and report > back to js - and then relay any information necessary to the client or > upload the file. > > Hope this helps > > On Mar 5, 3:13 pm, Hamish Campbell <[EMAIL PROTECTED]> wrote: > > File size or dimensions? > > > > On Mar 4, 4:25 pm, Xinhao Zheng <[EMAIL PROTECTED]> wrote: > > > > > hi all, > > > > > is there a way to do this that can work both under ie and > FF.thanks > > > in advance. > > > > > George >
