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Bug #43897 $ie not cleared on IE quit
Submitted: 2008-01-20 02:52 UTC Modified: 2021-05-16 04:22 UTC
From: csaba at alum dot mit dot edu Assigned: cmb (profile)
Status: No Feedback Package: COM related
PHP Version: 5.2.5 OS: Win XP Pro
Private report: No CVE-ID: None
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From: csaba at alum dot mit dot edu
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 [2008-01-20 02:52 UTC] csaba at alum dot mit dot edu
Description:
------------
In the code below, if the visible IE is closed, whether by script or by the user, the bug manifests itself.  What will happen is that there will be a sequence of (ReadyState) 4's displayed while IE is extant.  When IE is closed, "Exiting" should be printed, but what happens is that a sequence of ReadyState=0's is printed, which is a bug.

The bug only happens if there are no instances of IE when the script is run.

The second instance of $ie has to be 'static'

Csaba Gabor from Vienna

Reproduce code:
---------------
<?php
// IE being closed doesn't terminate script
// if there are no IE instances on startup
$ie = new COM("InternetExplorer.Application");
$ie->visible = true;
$ie->Navigate2 ("about:blank");

$ie2 = new COM("InternetExplorer.Application");

try { while ($ie->ReadyState>=0) {
  print $ie->ReadyState;
  com_message_pump(200); } }
catch (com_exception $e) {}
print "Exiting";
?>

Expected result:
----------------
I expect to see a sequence of 4s until I close IE, and then I expect to see Exiting printed

Actual result:
--------------
A sequence of 4s is printed, but when I close IE a sequence of 0s is printed which doesn't terminate till I use the windows task manager (ctrl+alt+delete) to kill the iexplore process.  (One could also use ctrl+C in the Cmd window, but that leaves a hidden IE instance, so the bug won't show itself next time around, until the IE is removed).

The bug manifests itself without user actions if
$ie->Quit();
is inserted right above the 'try' line

If there is already an instance of IE in existence, then the bug does not happen.

The bug will also show itself if the '$ie2' line is replaced with:
ieStatic();
function ieStatic() {
  static $ie;
  $ie = new COM("InternetExplorer.Application"); }

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 [2021-05-03 12:24 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2021-05-03 12:24 UTC] cmb@php.net
Is this still an issue with any of the actively supported PHP
versions[1]?

[1] <https://www.php.net/supported-versions.php>
 [2021-05-16 04:22 UTC] php-bugs at lists dot php dot net
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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