Real Time Update of Browser from Perl Script

[riccol]

I have an HTML page on a web host server that calls a Perl Script. I'd like the Perl script to keep updating the browser window with a status countdown message while the script does it's stuff. However, any HTML print statements that the perl script generates don't get printed to the browser window until the Perl script ends. How do I get around this?

 

[KevinADC]

$|=1;
print stuff here
$|=0;


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- Kevin, perl coder unexceptional!

 

[riccol]

I tried this and it didn't work. Can you please explain how $|=1; operator functions.

 

[feherke]

Hi

That is not operator. Is special variable. I think its alternative name is self explanatory : [tt]$OUTPUT_AUTOFLUSH[/tt].

Feherke.

http://rootshell.be/~feherke/

 

[KevinADC]

If you want a countdown while the script is doing other things, I am not sure how to do that. Maybe fork() or threads.

As far as $|=1 goes:

How do I flush/unbuffer an output filehandle? Why must I do this?



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- Kevin, perl coder unexceptional!

 

[travs69]

I think you still have to end your print statements with a \n before the browser will display it though.. correct?

I normally don't worry about my \n in html except for easy of reading the html (cause they don't really matter) but I was thinking on a few of my longer scripts even with $|=1 it still wouldn't show on the browser till I started adding in \n's.

of course... there's that chance that eating lead paint as a kid has affected my memory