<?php
/***************************************************
* PHP Class for UDP Magic Packet Wake-on-Lan
* �2002
***************************************************
* This class exports 2 functions you would most
* probably want to use:
* void MagicPacket() - class descriptor
* bool wake(string $ip, string $mac[, int $port]) - to wake the computer at the specified
* ip address. The mac argument is the MAC
* address of the NIC you would like to
* wake up. The port argument is any UDP port,
* preferably 9, the UDP discard port.
* Returns true on success, false on failure.
***************************************************
* Usage: $wol = new MagicPacket();
* $wol -> wake('192.168.1.201','001122334455', 9);
****************************************************/
class MagicPacket
{
function MagicPacket()
{
$this -> $ff = chr(0xFF);
}
function wake($ip, $mac, $port)
{
$this -> $nic = fsockopen("udp://" . $ip, $port);
if( !$this -> $nic )
{
fclose($this -> $nic);
return false;
}
else
{
fwrite($this -> $nic, $this -> generate_magic_packet($mac));
fclose($this -> $nic);
return true;
}
}
function generate_magic_packet($dest_mac)
{
$packet = "";
for($i = 0; $i < 6; $i++)
{
$packet .= $this -> $ff;
}
for($i = 0; $i < 6; $i++)
{
$packet .= chr((int)substr($dest_mac, $i, $i + 2));
}
return $packet;
}
}
?>
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