[Asterisk-Users] PHP/AGI Problem

[Alex Barnes]

> -----Original Message-----
> From: Jon Farmer [mailto:viperdude_uk at yahoo.co.uk] 
> Sent: 26 May 2005 08:47
> To: Moises Silva; Asterisk Users Mailing List - 
> Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] PHP/AGI Problem
> 
> 
> The numbers are read out continuously as expected but If the caller 
> hangs up the app does not exit. The console log say the 
> caller hung up 
> but the app still shows in the process list. The same happened if I 
> changed the PHP script in the same way.
> 
> I am therefore assuming that AGI expects the script to detect 
> the caller 
> hung up and to act accordingly. Therefore I guess my question 
> is how do 
> I detect the caller hungup while a AGI script is running?
> 
> Regards
> 
> Jon


That is what I was guessing to be the problem.

Normal browser interaction is, PHP script continues to execute until one
of two things happens.
A) The script completes processing
B) The browser kills the TCP connection to the web server / user presses
stop / moves to a different page


Your problem is you don't want A) to ever happen cos it's a continuous
loop.
And B) never happens because asterisk seems to never kill an AGI
connection when user hangs-up.

So worse than just taking up resources on your web server / plain PHP
server you are probably taking up
resources on your asterisk too.

You might want to try adding in some file logging and before & after
each potentially blocking line, 
for example the read DTMF line, print out some debug to file.
I suspect you might find that the script isnt blocked its just looping
happily forever.


Assuming the above is true I think there could be an error in your
script maybe?  
But I have never used phpagi() before (easier to write my own class) so
this is just a guess.

Currently after:

$res = $agi->agi_getdtmf(1,10000,$term,$prompt=FALSE);

You test for no DTMF and then simply return null.
Instead you could call the other piece of code you have:

$status = $agi->agi_channel_status($agi->request["agi_channel"]);
$agi->conlog("Status code: " . $status["status"]);
$agi->conlog("Description: " . $status["description"]);
if($status["description"] != "Line is up") {
	exit();
}






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