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Bug #10752 infinite loops prevents pages from loading
Submitted: 2001-05-09 10:01 UTC Modified: 2001-05-21 20:37 UTC
From: anabolic at begendik dot com dot tr Assigned:
Status: Closed Package: *Programming Data Structures
PHP Version: 4.0.4pl1 OS: Linux and Win2k
Private report: No CVE-ID: None
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From: anabolic at begendik dot com dot tr
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 [2001-05-09 10:01 UTC] anabolic at begendik dot com dot tr 
<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1254">
<title>Loop</title>
</head>
<body>
<?
for($value=1; $value>0; $value++){
	echo"<br>$value";
	
	flush();
	sleep(1);
}
?>
</body>

</html>

The code above does not work when opened in more than two browsers on the same computer. 

Any ideas?

Thank you.

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 [2001-05-09 10:42 UTC] cnewbill@php.net 
1.) Why are you doing an infinite loop in the first place?

2.) This is working just fine for me on my linux machine with 4.0.5.

-Chris
 [2001-05-10 07:45 UTC] anabolic at begendik dot com dot tr 
This is going to be used for a chat board, there will be an infinite loop which reads from a mySQL db and flushes the output. 

I tought there was something wrong with my db access code however I realised that, the code was not working altough I have simplified it as I have posted.

I have tried with different os and web server software. I have tried Linux & Apache and Win2k & IIS5.

When I open the page, it works fine. When I open the same page in another window at the same computer it still works fine however if I try to open a third browser window (private chat with 3 person for instance) the browser window freezes and if I close one of the previous browser windows the third window starts working.

Thank you,

Argun
 [2001-05-10 11:25 UTC] cnewbill@php.net 
This sounds like an unreliable way to accomplish your goal, as you are finding out.

Don't you think it would be better to simply have a META tag refresh the chat session (could be a frame or what not) every X seconds?  Could have the user list in a seperate frame and the message entry area in another.

-Chris
 [2001-05-10 13:17 UTC] anabolic at begendik dot com dot tr 
I have tried a meta tag, but the screen flashes when the page is refreshed.

In addition to my previous postings, when I open two browser windows by clicking on their icons and write the address in the address box, the script works, when I press the ctrl-n keys and open a new browser window the script freezes.

Thank you,

Argun
 [2001-05-21 20:37 UTC] sniper@php.net 
The example code works just fine for me with 5 browser
windows. This is on Linux / Apache.

Unless you can come up with a script that doesn't work,
this case is closed.

--Jani
 
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