Also you should think about writing those files a memcache or something.
That way the image can expire but you're not wasting a lot of cpu cycles,
aka 500 hits to the site at the same time would be very intensive, but
if someone hit the site 10 minutes ago with a 700 ttl, the would load the
image instantly from ram ;)
Also a method I like is
class thumbnail {
function __construct($baseFileName){
if (!file_exists(THUMBS."/".$baseFileName)
$this->generateThumbnail($baseFileName);
return $this->outputThumbContents($baseFileName);
}
function outputThumbContents($sFileName){
//Reads file and echo its header/contents
}
}
Which of course you could make check a memcache location instead or
memcache,file,then build if neither is present. :)
David
-----Original Message-----
From: Ashley Sheridan [mailto:ash@xxxxxxxxxxxxxxxxxxxx]
Sent: Thursday, March 11, 2010 9:26 AM
To: Floyd Resler
Cc: PHP
Subject: Re: Drawing Images Without Writing To a File
On Thu, 2010-03-11 at 10:27 -0500, Floyd Resler wrote:
> I want to draw tabs in a tab bar without having to actually write the
images to a file. Is it possible to generate the image and send the data
back and make the browser think it's loading an image file? I know this can
be done by sending the proper headers back for an entire page, but I just
want to do basically the same thing for just part of the page.
>
> Thanks!
> Floyd
>
>
Have the image tag call a script which generates the images based on
parameters in the filename:
<img src="image.php?param1=something¶m2=something_else"/>
Then you can have PHP read in the GET data and generate any image you
need.
Thanks,
Ash
http://www.ashleysheridan.co.uk
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