Posted by steve park on 07/14/05 01:12

Hi everyone,

this is one of those "inherited from someone else" projects that I'm having
problems with and was wondering if someone could help me out.

Our setup:

Redhat Linux
Apache 2.0.46
PHP 4.3.2
GD 1.8.4

We have a php-based setup that allows users to upload images and then some
back-end stuff that stores the original image and creates a thumbnail image.
I've just noticed that large images, say 1500x1500 or larger, give the
resize script some problems. We're using Shiege Iseng's resize class
(http://kentung.f2o.org/scripts/thumbnail/).

The error is coming when the class calls the imagecreatefromjpeg() function,
and the specific error is

Fatal error: Allowed memory size of 29360128 bytes exhausted (tried to
allocate 8652 bytes) in <servername>/resize.php on line 51

The image itself is 2163x2957x24bpp at 300 dpi and is 3 megs on disk and
18.31 MB in memory, according to IrfanView.

If I use IrfanView to reduce the image to, say, 1400x1800 or so then the
resize script has no problems, so I guess there really IS a memory issue.
;-)

I'm wondering:

1. will the problem go away if I upgrade to GD 2.x?
2. will the problem go away if I upgrade to PHP 5?

It's doubtful that I'll be able to upgrade PHP or GD, though ...

So, first of all, has anyone run into a problem like this? Second, what are
my options? One big constraint is that the preferred solution is to let
users upload images to whatever size they want, so setting a 1500x1500
restriction before they upload isn't going to work.

Thanks!

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