RE: Re[2]: [PHP] Re: system(), flush() and so on... From: Darren Gamble (Darren.Gamble <email protected>)
Date: 11/30/01

Good day,

Oops, you're right. I did not read that line nor was I aware of that.

I just tried <?php system("traceroute www.google.com"); ?> . It works
exactly as it says it should- outputs the lines as they come in. I also
know flush() works fine (at least for me).

Perhaps you could provide some information about your O/S and PHP version?

============================
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948

-----Original Message-----
From: faeton [mailto:faeton <email protected>]
Sent: Friday, November 30, 2001 2:35 PM
To: Darren Gamble
Cc: php-general <email protected>
Subject: Re[2]: [PHP] Re: system(), flush() and so on...

Hello Darren,

------ manual cut --------
The system() call also tries to automatically flush the web server's
output buffer after each line of output if PHP is running as a server
module.
------ manual cut --------

Hehe. The problem is not in flushing ability of system() foo, but
flush() itself is not working :(
I've tried to install PHP as a module (as written above), cgi,
compiled with apache. But nothing worked.

DG> flush() will just empty the contents of the output buffer when it's
called.
DG> You should do this after you output the command, yes, or the user will
have
DG> to wait until the rest of the page is loaded. But this won't let you
see
DG> the output as it is generated by the system() function.

DG> You may want to try popen instead. This gives you a pipe to the
process, so
DG> you _should_ be able to read in lines of the output and display them as
they
DG> appear, whilst using flush() (although I have never tried this myself
so I
DG> can not vouch for it).

------------------------------------------------
Ivan 'Faeton aka xetrix' Danishevsky
ICQ(240266) faeton <email protected> www.xemichat.com 

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