handling missing includes

Suntin

I'm looking into handling missing includes.

So far the only vaguely similar stuff I've been able to find is about using require() to prevent processing after a missing include.

What if I wanted to change the include variable or perform a redirect.

so the server is sending includes dynamically and suddenly it builds one for a file that doesn't exist.

include(http://mysite/directory1/nosuch.php);

so it registers that no file was found and then attempts

include(http://mysite/directory2/nosuch.php);

most likely the file is there but assuming it again fails to find it it tries a 3rd time

include(http://mysite/404.php);

is there a sensible way to do this? I could handle it happily with .htaccess if it was directly calling the page but what about when it has a valid page but a dud include?

leatherback

Did you have a look at the manual for includes?

if((include 'vars.php') == 'OK') {
echo 'OK';
}

You could modify that to something:

while($false)
  {
  if($i == $maxi)
  if((include('page'.$i'.'php') == 'OK') {
  $false = false;
  $i++;

{
 include($my404);
 $false = false;
 }
  }

bradgrafelman

Or use [man]file_exists/man to safely check if the file exists before you try to include it.

Also... why are you trying to include files across an HTTP connection? This should never be done (and in fact, isn't this disabled by default in PHP5? Or was it 6?).

NogDog

<?php
if(! @include 'http://mysite/directory1/nosuch.php')
{
   // log fact that this include failed, then...
   if(! @include 'http://mysite/directory2/nosuch.php')
   {
      // log fact that this include failed, then...
      if(! @include 'http://mysite/404.php')
      {
         user_error('Unable to include anything, giving up...', E_USER_ERROR);
      }
   }
}
?>

shauny17

If im correct, doesnt including files over HTTP actually parse the file before it includes thus disabling some features?

NogDog

shauny17 wrote:
If im correct, doesnt including files over HTTP actually parse the file before it includes thus disabling some features?

Assuming that the host in question processes PHP files, then yes: including them would be no different than doing a readfile() of them.

bradgrafelman

NogDog wrote:
no different than doing a readfile() of them

Or, in simpler terms, opening up your web browser, going off to http://thesite.com/path/to/script.php, and viewing the source of the generated page. That's the "code" that PHP is trying to include().

shauny17

therefore u do it by using a function called

$_SERVER['DOCUMENT_ROOT']

This gives you a server local link to your htdocs folder (or whatever ur main web folder is) and you can navigate from there. so it would be:

include $_SERVER['DOCUMENT_ROOT'] . 'path/to/file.php';

this will include the file locally, therefore it will not be parsing the file.

Am i correct guys?

bradgrafelman

Well, that's a "variable," not a "function," but yes, that's one way of including files locally.

Alternatively, you could just use a relative path (e.g. "../../config.php" or "includes/script.php").