Events in practice

Let's look at a few specific examples that demonstrate the use of events.

Event Socket Library example: running a command

The following PHP example shows how you can write a simple script to take one-line commands and, using the FreeSWITCH Event Socket Library, send those commands to FreeSWITCH, and wait for the response.

// Include FreeSWITCH ESL Library. Note that ESL.php comes
// with the FreeSWITCH PHP ESL module.
require_once('ESL.php');

if ($argc <= 1) {
printf("ERROR: You Need To Pass A Command\nUsage:\n\t%s <command>",
$argv[0]);
exit();
}

// Strip off the executable's name ($argv[0])
array_shift($argv);
$command = sprintf('%s', implode(' ', $argv));
printf("Command to run is: %s\n", $command);

// Connect to FreeSWITCH
$sock = new ESLconnection('localhost', '8021', 'ClueCon');

// Send the Command
$res = $sock->api($command);

// Print the response
printf("%s\n", $res->getBody());

Examples of sending events to FreeSWITCH

The following examples are...