Get_variable in AGI

Simplesunny · January 18, 2021, 7:46am

Hi,

I am using Asterisk certified/16.8-cert3

and in AGI I am setting the static value and need to retrieve or get the same value

$fastagi->set_variable(“plan_id”, 123);
$plan_id = $fastagi->get_variable(‘plan_id’);
$fastagi->verbose(“MYRESULT->”.$plan_id);

Below is my full debug log line where it shows that I am getting the value “123” but not able to use that in the same AGI, just wanted to know the functionality for get_variable

[Jan 18 07:10:43] DEBUG[853153][C-00000002]: pbx_variables.c:375 ast_str_retrieve_variable: Result of ‘plan_id’ is ‘123’

david551 · January 18, 2021, 11:02am

Why are you using a certified version, rather than the latest, when you aren’t getting paid support from Sangoma?

Which AGI class library are you using?

You don’t appear to have enabled AGI debugging.

Simplesunny · January 18, 2021, 11:33am

Hi @david551

I will upgrade to Asterisk 18.1
and currently, we are using PHP-AGI 2.2

Below is the AGI Debug enabled logs where I am getting the information that get_variable has the value “123” but unable to use that in my agi file

<PJSIP/1002202-0000000c>AGI Tx >> 200 result=1
<PJSIP/1002202-0000000c>AGI Rx << GET VARIABLE plan_id
<PJSIP/1002202-0000000c>AGI Tx >> 200 result=1 (123)

david551 · January 18, 2021, 11:47am

That suggests the problem lies with the library, rather than Asterisk.

ambiorixg12 · January 18, 2021, 2:07pm

declare the variable on the php enviroment

$myvar=123;

looks this method set_variable() doesnt not create the variable on php side.

sedwards · January 18, 2021, 4:04pm

Please post code snippets wrapped in preformatted text tags so the forum software does not eat important characters like ‘$’ or change quotes to funky quotes.

Your console log snippet shows you retrieved the channel variable, but not what happened when you execute ‘verbose()’. It probably looks like:

<SIP/poly-77a1-00000007>AGI Rx << VERBOSE "MYRESULT->Array" 1
 example.php: MYRESULT->Array
<SIP/poly-77a1-00000007>AGI Tx >> 200 result=1

meaning ‘$plan_id’ is an array, not a scalar.

The ‘get_variable()’ method, returns an array. The array consists of 3 members: code, data, and result. You can access the members like:

        $agi->verbose('code->'.$plan_id['code']);
        $agi->verbose('data->'.$plan_id['data']);
        $agi->verbose('result->'.$plan_id['result']);

Which will result in a console log like:

<SIP/poly-77a1-00000008>AGI Rx << VERBOSE "code->200" 1
 example.php: code->200
<SIP/poly-77a1-00000008>AGI Tx >> 200 result=1
<SIP/poly-77a1-00000008>AGI Rx << VERBOSE "data->123" 1
 example.php: data->123
<SIP/poly-77a1-00000008>AGI Tx >> 200 result=1
<SIP/poly-77a1-00000008>AGI Rx << VERBOSE "result->1" 1
 example.php: result->1

ambiorixg12 · January 18, 2021, 10:57pm

If return an arrary then is just use the key and value holding the data

Simplesunny · January 21, 2021, 7:29am

Hi @sedwards, Thanks but it is not working in my case as I am using fastagi on Ast 18.1.1 with PHP-AGI 2.2

$fastagi->set_variable("plan_id", "123654");
$plan_id = $fastagi->get_variable("plan_id");

 $fastagi->verbose(print_r($plan_id, TRUE));
 $fastagi->verbose(print_r(${plan_id}, TRUE));

$fastagi->verbose('code->'.$plan_id['code']);
$fastagi->verbose('data->'.$plan_id['data']);
$fastagi->verbose('result->'.$plan_id['result']);


================LOGS=======================


<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << GET VARIABLE plan_id
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1 (123654)
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "Array" 1
 agi://127.0.0.1:4761/check.php,18000000000: Array
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "(" 1
 agi://127.0.0.1:4761/check.php,18000000000: (
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [code] => 200" 1
 agi://127.0.0.1:4761/check.php,18000000000:     [code] => 200
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [result] => 1" 1
 agi://127.0.0.1:4761/check.php,18000000000:     [result] => 1
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [data] => " 1
 agi://127.0.0.1:4761/check.php,18000000000:     [data] =>
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE ")" 1
 agi://127.0.0.1:4761/check.php,18000000000: )
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "" 1
 agi://127.0.0.1:4761/check.php,18000000000:
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "Array" 1
 agi://127.0.0.1:4761/check.php,18000000000: Array
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "(" 1
 agi://127.0.0.1:4761/check.php,18000000000: (
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [code] => 200" 1
 agi://127.0.0.1:4761/check.php,18000000000:     [code] => 200
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [result] => 1" 1
 agi://127.0.0.1:4761/check.php,18000000000:     [result] => 1
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "    [data] => " 1
 agi://127.0.0.1:4761/check.php,18000000000:     [data] =>
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE ")" 1
 agi://127.0.0.1:4761/check.php,18000000000: )
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "" 1
 agi://127.0.0.1:4761/check.php,18000000000:
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "code->200" 1
 agi://127.0.0.1:4761/check.php,18000000000: code->200
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "data->" 1
 agi://127.0.0.1:4761/check.php,18000000000: data->
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << VERBOSE "result->1" 1
 agi://127.0.0.1:4761/check.php,18000000000: result->1
<PJSIP/1002202-00000015>AGI Tx >> 200 result=1
<PJSIP/1002202-00000015>AGI Rx << SET VARIABLE plan_id "123654"

Which version of AGI you are using?

sedwards · January 21, 2021, 7:58am

At this stage of the game, I don’t think fastagi is your issue. Try just ‘plain agi’ to confirm.

The AGI protocol is a line oriented request/response kind of animal – you issue 1 request, you read 1 response, lather, rinse, repeat.

I suspect using print_r() is your issue. This is going to output a mulit-line description of $plan_id, thus, breaking the AGI protocol. Try it without the 2 verbose(print_r()) statements.

Which version of phpagi am I using? 2.20.

system · February 20, 2021, 7:58am

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