PHP includes question

[Toby A Inkster]

Re: Also... Re: PHP includes question

Geoff Berrow wrote:

<a href='includes. php?file=f1'>fi le one</a| <a
href='includes. php?file=f2'>fi le two</a><br><br>
<?php
>
if(isset($_GET['file'])&& $_GET['file']=="f1"){
include("f1.php ");
}
elseif(isset($_ GET['file'])&& $_GET['file']=="f2"){
include("f2.php ");
}
else{
echo "No file included";
}
>
?>

This doesn't really disprove Sanders' point: both files may have been
included, but only one output to the browser -- the other one may have
simply been parsed and ready.

That said, I believe the behaviour Sanders describes was changed with
PHP 4. include()ed and require()ed files are now only loaded on demand.

--
Toby A Inkster BSc (Hons) ARCS
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* = I'm getting there!

[Geoff Berrow]

Re: Also... Re: PHP includes question

Message-ID: <vodb94-q77.ln1@ophelia .g5n.co.ukfrom Toby A Inkster
contained the following:

>This doesn't really disprove Sanders' point: both files may have been
>included, but only one output to the browser -- the other one may have
>simply been parsed and ready.

I'd doubt parsed because errors don't show until the file is used. As
far as the programmer is concerned it is as if it is never read.
--
Geoff Berrow (put thecat out to email)
It's only Usenet, no one dies.
My opinions, not the committee's, mine.
Simple RFDs http://www.ckdog.co.uk/rfdmaker/

[Jerry Stuckle]

Re: Also... Re: PHP includes question

Sanders Kaufman wrote:

Nu wrote:

>"Sanders Kaufman" <bucky@kaufman. netwrote in message
>news:cwhwh.229 5$4H1.1365@news svr17.news.prod igy.net...

>>Nu wrote:
>>>
>>>I have seen code like this:
>>> if ( file_exists( "$IP/languages/classes/$class.deps.php " ) ) {
>>> include_once("$ IP/languages/classes/$class.deps.php ");
>>> }
>>>It appears not to load the file unless an if statement passes.
>>Well, I could be wrong - it would be as easy as RTFM to verify. :)

>>
>I can't find anything in the manual on this.

>
Check the page that discusses "require_on ce" and "include_on ce".
It's all there.

Yep.

"The include_once() statement includes and evaluates the specified file
during the execution of the script."

It's an execution time statement, not a compile time statement.
Therefore it will only include the file if this statement is executed.

For instance:

if (false)
include_once('m yfile.php');

will never include the file.

require_once() has a similar statement.

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