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 process one-line commands. Using the FreeSWITCH Event Socket Library you can 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...