SOLVED Passing variable to dialplan from AGI

[jehowe]

I can't seem to get this working using PIAF with asterisk v1.8.x. I've set up a very simple test to try and pass a variable within the dialplan using a simple test.agi file, viewing the result using NoOP.....

Dialplan

exten => _X.,n,AGI(/var/lib/asterisk/agi-bin/test.agi)
exten => _X.,n,NoOp(variable value=${ScriptResult})

test.agi

#!/usr/bin/php
<?php
 
    $vartest= 'value';
    $agi = new AGI();
    $agi->set_variable('ScriptResult', $vartest);
?>

I've googled around and just can't seem to get it going. Thanks for any help or pointers!

 

[wardmundy]

Here's what works for me. With this function, you can pass variables in both directions.

Dialplan:

exten => 1234,1,AGI(test.agi)
exten => 1234,n,NoOp(${ScriptResult})
exten => 1234,n,Hangup

test.agi:

#!/usr/bin/php -q
<?php
 
$debug=0;
$stdlog = fopen($log, 'a');
$stdin = fopen('php://stdin', 'r');
$stdout = fopen( 'php://stdout', 'w' );
 
function execute_agi( $command )
{
GLOBAL $stdin, $stdout, $stdlog, $debug;
 
fputs( $stdout, $command . "\n" );
fflush( $stdout );
if ($debug)
fputs( $stdlog, $command . "\n" );
 
$resp = fgets( $stdin, 4096 );
 
if ($debug)
fputs( $stdlog, $resp );
 
if ( preg_match("/^([0-9]{1,3}) (.*)/", $resp, $matches) )
{
if (preg_match('/result=([-0-9a-zA-Z]*)(.*)/', $matches[2], $match))
{
$arr['code'] = $matches[1];
$arr['result'] = $match[1];
if (isset($match[3]) && $match[3])
$arr['data'] = $match[3];
return $arr;
}
else
{
if ($debug)
fputs( $stdlog, "Couldn't figure out returned string, Returning code=$matches[1] result=0\n" );
$arr['code'] = $matches[1];
$arr['result'] = 0;
return $arr;
}
}
else
{
if ($debug)
fputs( $stdlog, "Could not process string, Returning -1\n" );
$arr['code'] = -1;
$arr['result'] = -1;
return $arr;
}
}
 
 
    $vartest= 'value';
    execute_agi("SET VARIABLE ScriptResult $vartest");
?>

 

[wardmundy]

To send variables to the AGI script and read them...

Dialplan:

exten => 1234,1,AGI(test.agi,${SOME-VARIABLE})

test.agi:

while ( !feof($stdin) )
{
$temp = fgets( $stdin );
 
if ($debug)
fputs( $stdlog, $temp );
 
// Strip off any new-line characters
$temp = str_replace( "\n", "", $temp );
 
$s = explode( ":", $temp );
$agivar[$s[0]] = trim( $s[1] );
if ( ( $temp == "") || ($temp == "\n") )
{
break;
}
}
 
$SOME-VARIABLE = $_SERVER["argv"][1];

For more variables, separate them with commas in the dialplan and parse the array for 2, 3, 4, etc.

 

[jehowe]

Bingo! It was the missing phpagi . Thanks lgaetz, and thanks Ward for the detailed examples!