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Re: Windows binaries 64bit for PHP [message #178066 is a reply to message #178065] Fri, 11 May 2012 19:46 Go to previous messageGo to previous message
Shake is currently offline  Shake
Messages: 40
Registered: May 2012
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Jerry Stuckle avait écrit le 11/05/2012 :
> On 5/11/2012 2:58 PM, Shake wrote:
>> Jerry Stuckle a couché sur son écran :
>>>
>>> Loading the script, starting the scripting module, initializing the
>>> environment, interpreting and running the script, checking for the
>>> presence of the image, storing a resized script if necessary, loading
>>> the image and sending it, and cleaning up the environment.
>>>
>>> This vs. sending the image directly via an <img ...> tag.
>>>
>>> Nope, no extra overhead! And no way to send the image without a script!
>>>
>>
>> The Extra overhead is something like in the code that generate the page:
>>
>> <?php
>> if(!file_exists(IMG_PATH.$image_file)) scaleImage($image_file);
>> ?>
>>
>> Not look like an "application killer" to me.
>>
>> Greetings.
>>
>>
>
> There's a lot more to the overhead than that!

Which?

Is the image going to be accessed directly by its URL, or is loaded
inside a webpage? I am sure is this last case.

So Loading a PHP script will occur 99.999% if you reescaled the image
previously with a batch or not. All the work of load an script, will be
done always.

I don't believe that "react" to a 404 error is the good aproach, but
generating dinamically the scaled images when the page that show them
is required.

And this only need the few lines to test if file exists and generate
the images if not.

The fact that the image is directly accessed without pasing first for
the php script...

Someone talked about a catalog of image... I am sure they are accessed
through a we, not directly.

Even if they are accessed via search engines, these search engines have
to visit the scripts that would generate the scaled images.

Greetings.
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