[asterisk-users] Check if a variable is set

[Danny Nicholas]

This might work:
exten => s,2,ExecIf($["LEN(${ARG3})" >"0"] & ${ARG3}=1|<whatever I want
to do>

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ishfaq Malik
Sent: Friday, October 16, 2009 7:56 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Check if a variable is set

That fails to execute in both conditions

ABBAS SHAKEEL wrote:
> Please try this 
>
> xten => s,2,ExecIf( 0EXISTS(${ARG3})=1 & 0${ARG3}=1|
>
> On Fri, Oct 16, 2009 at 3:45 PM, Ishfaq Malik <ish at pack-net.co.uk 
> <mailto:ish at pack-net.co.uk>> wrote:
>
>     I'm basically trying to make an argument optional in a macro, I'm
>     starting to think it's not possible
>
>     If I do this in my macro
>     exten => s,2,ExecIf(EXISTS(${ARG3})=1 & ${ARG3}=1|<whatever I want
>     to do>
>
>     I see this in the console
>     Executing [s at macro-extcall:2] ExecIf("SIP/PACK501-08222428",
>     "EXISTS()=1
>     & =1|<whatever I want to do>
>
>     As I didn't pass a third argument.
>
>     Essentially, what I'm trying to do in php terms would be this
>     if(isset($var) && $var==1)
>
>     Ish
>
>     ABBAS SHAKEEL wrote:
>     > Sorry its macro I called it a function.
>     >
>     > This link will be helpful to you
>     > http://www.voip-info.org/wiki/index.php?page=Asterisk+variables
>     >
>     >
>     > On Fri, Oct 16, 2009 at 3:13 PM, ABBAS SHAKEEL
>     > <shakeel.abbas.qau at gmail.com
>     <mailto:shakeel.abbas.qau at gmail.com>
>     <mailto:shakeel.abbas.qau at gmail.com
>     <mailto:shakeel.abbas.qau at gmail.com>>> wrote:
>     >
>     >     If you want to check in Console then NOOP can be used .
>     >     if in case of function call you can check its length if there
>     >     exists some thing
>     >
>     >
>     >     On Fri, Oct 16, 2009 at 3:04 PM, Ishfaq Malik
>     <ish at pack-net.co.uk <mailto:ish at pack-net.co.uk>
>     >     <mailto:ish at pack-net.co.uk <mailto:ish at pack-net.co.uk>>> wrote:
>     >
>     >         Hi
>     >
>     >         Is there any way to check if a variable is set in asterisk?
>     >         I've had a
>     >         look around and can't find a purpose built function for it.
>     >
>     >         I'm going to be using it to see if an argument has been
>     passed
>     >         with a
>     >         macro or not (e.g. see if ${ARG3} is set or not)
>     >
>     >         Thanks in advance
>     >
>     >         Ish
>     >         --
>     >         Ishfaq Malik
>     >         Software Developer
>     >         PackNet Ltd
>     >
>     >         Office:   0161 660 3062
>     >
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>     >
>     >
>     >
>     >
>     >     --
>     >     Best Regards
>     >     Shakeel Abbas
>     >
>     >
>     >
>     >
>     > --
>     > Best Regards
>     > Shakeel Abbas
>     >
>     >
>
------------------------------------------------------------------------
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>     --
>     Ishfaq Malik
>     Software Developer
>     PackNet Ltd
>
>     Office:   0161 660 3062
>
>     _______________________________________________
>     -- Bandwidth and Colocation Provided by http://www.api-digital.com --
>
>     AstriCon 2009 - October 13 - 15 Phoenix, Arizona
>     Register Now: http://www.astricon.net
>
>     asterisk-users mailing list
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>
>
>
> -- 
> Best Regards
> Shakeel Abbas
>
> ------------------------------------------------------------------------
>
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-- 
Ishfaq Malik
Software Developer
PackNet Ltd

Office:   0161 660 3062

_______________________________________________
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