Re: Manipulating images

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Well first of all the HTML image tag you provided '<img...>' really have no play in processing for
PHP or Apache. This is pass-through code. In other words you are parsing this via PHP to build the
filename for the img src= attribute but the fact the file does not actually exist is not a concern
of PHP nor Apache. Only the user's browser cares even a little. 

Also, if your image is large say 600x400 and you limit the size via width=80 or height=80 in the
<img> tag, you are still forcing Apache to deliver the full sized image. The width and height are
only to control display proportions.

As a suggestion why not install ImageMagick to convert your images to thumbs or whatever. 
http://www.imagemagick.org/script/index.php


--- "Marcos R. Cardoso" <mcardoso@xxxxxxx> wrote:

> Hello,
> 
> we use here a script to convert our users' photos into thumbnails using 
> the functions imagecreatefromjpeg(), imagejpeg() and others. Later we 
> found out that we could simply use a tag like the one below, since the 
> photos are thumbnails nowadays.
> "<"img src="<"?=$code.'-'.$digit?">".jpg width=80 /">"
> 
> But using a tag like that has become a new problem, because the web 
> server stops working properly after some time (some DLLs errors, Apache 
> stops continuously and then stops permanently, having to restart the web 
> server). We suspected that the problem was in the fact that some users 
> hadn't taken the photo previously and the accumulation of the error 
> "file not found" was generating this problem, so we used the is_file() 
> function, but the problem continued. When PHP 4.4.1 was released the 
> "corrupt jpeg" bug #34704 was fixed, so we installed it, but the problem 
> continued.
> 
> We actually don't what could be freezing the Apache, so we are still 
> using the "resize" script, which is useless and takes memory and CPU 
> usage from the webserver.
> 
> Our current scenario is:
> Windows 2003
> Apache 2.0.54
> PHP 4.4.1
> Sun Chili!Soft ASP 3.6.2
> 
> Any help would be appreciated,
> Marcos R. Cardoso
> FURB
> Brazil
> 
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