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Bug #19291 Include file failure with PHP 4.2.3
Submitted: 2002-09-08 10:24 UTC Modified: 2002-09-26 12:04 UTC
From: fillmore at NRCan dot gc dot ca Assigned:
Status: Closed Package: Scripting Engine problem
PHP Version: 4.2.3 OS: Solaris 8
Private report: No CVE-ID: None
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 [2002-09-08 10:24 UTC] fillmore at NRCan dot gc dot ca 
Some PHP scripts that worked fine in 4.2.2 now fail in 4.2.3 with a message:
  "Fatal error: Call to undefined function: requireversion() in /home1/fast1/WWW-data/ess/_ess.php on line 11"

The file _ess.php is included in the main file index_e.php as follows:

   require_once("_ess.php");

The "requireversion" function is defined in the file _lib.php, which is included
in the file _ess.php as follows:

   if(file_exists("_lib.php")){
        require_once("_lib.php");
   }

   //this requires version 4.2+
   requireversion('4.2');


We are using the NSAPI (iPlanet 4.x) version of PHP.

Thanks,

  Bob Fillmore

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 [2002-09-08 12:25 UTC] kalowsky@php.net 
requireversion?

did you mean phpversion?
 [2002-09-08 12:50 UTC] wez@php.net 
Sounds like a dup of #19287 (file_exists fails).
Can you amend your script like this:

if(file_exists("_lib.php")){
   require_once("_lib.php");
} else {
   trigger_error("_lib.php does not exist!");
}
 [2002-09-08 13:13 UTC] fillmore at NRCan dot gc dot ca 
I will try to set up a proper test environment for this.
Note that this application uses relative path includes-
the file _lib.php exists in some directories but not others,
so just issuing an error will mess up the application.
Using absolute paths for the includes is a bit messy, 
because they would have to be dynamically built 
by parsing the URL each time.
However, thanks for the suggestion.
 [2002-09-08 13:29 UTC] sander@php.net 
Wez asked you that to find out if it was a problem with file_exists(). As an experiment, can you please try adding the else clause as Wez sugested, and see if it spawns errors on all pages (including those where _lib.php should be available)?
 [2002-09-08 13:30 UTC] sander@php.net 
Or even easier, set up a the following test script:
<?php echo (int) file_exists(basename($_SERVER['PHP_SELF'])); ?>
It should print a 1.
 [2002-09-08 13:47 UTC] fillmore at NRCan dot gc dot ca 
I ran a quick test with trigger_error as suggested, 
and saw the following errors:

Notice: _lib.php does not exist! in /home1/fast1/WWW-data/ess/_ess.php on line 9

Fatal error: Call to undefined function: requireversion() in /home1/fast1/WWW-data/ess/_ess.php on line 13

So, it looks like it is the "file_exists" problem.

  - Bob
 [2002-09-08 13:56 UTC] kalowsky@php.net 
As per Wez's observation... dup of #19287
 [2002-09-08 14:03 UTC] fillmore at NRCan dot gc dot ca 
Just to be thorough, I also tried the test script with:
<?php echo (int) file_exists(basename($_SERVER['PHP_SELF'])); ?>

It prints a "0", so I guess the bug is not specific to
include file processing.
 [2002-09-26 12:04 UTC] sniper@php.net 
This bug has been fixed in CVS.

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