pastebin — объяснение кода PHP

Я наткнулся на этот фрагмент кода php и хотел бы знать, знает ли кто-нибудь исходный код, назначение и реализацию этого кода.

<?php

require "twilio/Services/Twilio.php";

function sqlconnect()
{
$dbhost="localhost";           //database host
$dbuser="root";            //database username
$dbpassword="xxxxxx";        //database password
$dbname="xxxxx";            //database name
$db = mysql_connect($dbhost,$dbuser,$dbpassword) or die("Couldn't connect to the database.");
mysql_select_db($dbname) or die("Couldn't select the database");
return($db);
}

function sendsms($msg) {
$AccountSid = "xxxxx";  //twilio settings
$AuthToken = "xxxx";   //twilio settings
$client = new Services_Twilio($AccountSid, $AuthToken);
//    $sms = $client->account->sms_messages->create("xxxx", "+xxxx", $msg);  //twilio settings
$sms = $client->account->sms_messages->create("6xxxx", "+xxxx", $msg);   //twilio settings
echo"\n\nSending SMS\n\n";
}

$queue = array();

//////// setup our named pipe ////////

$pipefile = '/tmp/aironetpipe';
if(file_exists($pipefile))
if(!unlink($pipefile))
die('unable to remove stale file');

umask(0);
if(!posix_mkfifo($pipefile,0666))
die('unable to create named pipe');

$pipe = fopen($pipefile,'r+');
if(!$pipe) die('unable to open the named pipe');
stream_set_blocking($pipe,false);

//////// process the queue ////////
while(1) {

while($input = trim(fgets($pipe))) {
stream_set_blocking($pipe,false);
$queue[] = $input;
}

$job = current($queue);
$jobkey = key($queue);
if($job) {
echo '\n\nprocessing job ', $job, PHP_EOL;

//process($job);if (strstr($job, "-ASSOC")) {  //check for association
$db = sqlconnect();
$match = "/(?<=Station)(.*)(?=Associated)/";
preg_match($match, $job, $regexresult);
$mac = trim($regexresult[0]);
if ($mac != ""){  //get rid of reassociations
echo"\nAssociation found - checking database…  mac = $mac\n";$result = mysql_query("SELECT * FROM mactable WHERE `mac` = '$mac'") or die("Error: " . mysql_error());
$num_rows = mysql_num_rows($result);

if ($num_rows == "0") {
$result = mysql_query("INSERT INTO mactable VALUES ('$mac', now(), '', '')") or die("Error: " . mysql_error());
sendsms("New device detected on home network.  MAC address $mac");
}  else  {

while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
if ($row[3] != "N"){
echo"Device detected on home network $mac ($row[2])\n\n";
if ($row[2] == "") {
sendsms("Device detected on home network: $mac");
} else {
sendsms("Device detected on home network: $row[2]");
}

}

$result = mysql_query("UPDATE mactable SET lastseen = now() WHERE mac = '$mac'") or die("Error: " . mysql_error());

}

}
}
mysql_close($db);
}next($queue);
unset($job,$queue[$jobkey]);} else {
echo 'no jobs to do - waiting...', PHP_EOL;
stream_set_blocking($pipe,true);
}

}

?>