[wp-hackers] PHP Include Question - Best Practice

[ProDevStudio]

Hi Michael,

One way to do this would be to check is image_resize() has not already been
defined then include the image.php.

for example:

function foo() {
    if (!function_exists('image_resize')) {
        include_once(ABSPATH . WPINC . '/image.php');
    }
    //more code here
}


In terms of performance issue one would reduce the number of call to
include_once if it was loaded already.

I would be interested in seeing others take on this.

Kind Regards,
Azizur Rahman

----
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On Sun, Feb 14, 2010 at 4:03 AM, <michael at mfields.org> wrote:

> Hi. I'm putting together a small collection of functions that extend
> WordPress' image handling functionality. One of the functions returns a
> custom intermediate image size if one is found and has a parameter which
> (if set to true) will attempt to create the image using image_resize() - a
> core function.
>
> In the event that the function needs to create a new intermediate size,
> '/wp-admin/includes/image.php' needs to be included which leads me to this
> question:
>
> "Is there any performance penalty for using include_once() in a function
> that will most likely be called many times during the duration of a
> script?"
>
> It makes sense to me to only include the file if the function is set to
> create a new intermediate image, but if this could effect performance, I
> would rather just include it once outside of the function which uses it.
>
> Thanks!
> Mike
>
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