$timeout = 10;
$asterisk_ip = "XXXXXXXXXXX";
$socket = fsockopen($asterisk_ip,"5038", $errno, $errstr, $timeout);
fputs($socket, "Action: Loginrn");
fputs($socket, "UserName: USERNAMErn");
fputs($socket, "Secret: PASSWORDrnrn");

$wrets=fgets($socket,256);

echo $wrets;

fputs($socket, "Action: CoreShowChannelsrn");
fputs($socket, "ActionID: 123rnrn");
//fputs($socket, "Command: core show channelsrnrn");


$wrets=fgets($socket,256);

echo $wrets;

Asterisk Call Manager/1.3