Wake-On-LAN/Sockets script stopped working after 5.2.8 upgrade

[deeem]

Recently upgraded our PHP install from 5.2.0 to 5.2.8. Everything continued working without a hitch, except one script... The Wake-On-LAN one. This script was written by someone else (I have a feeling I originally got it off this forum) and barely changed for my use:

 

function WakeOnLan($mac)
{

// Create Magic Packet

for($i=0;$i<6;$i++)
	$packet .= chr(255);

$mac_byte = explode(':', $mac);

for($i=0;$i<6;$i++)
	$mac_addr .= chr(hexdec($mac_byte[$i]));

for($i=0;$i<16;$i++)
	$packet .= $mac_addr;


// Set to UDP broadcast

$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
socket_set_option($sock, SOL_SOCKET, SO_BROADCAST, TRUE);
socket_sendto($sock, $packet, strlen($packet), 0, '255.255.255.255', 9);

socket_close($sock);

return;

}

$mac = $_GET['pcid'];
WakeOnLan($mac);

 

It exits on the socket_create without generating an error, even with error_reporting set to E_ALL. Have checked the usage of socket_create on the PHP site, but all seems in order.

 

This is PHP running under IIS6 on Win2003 as an ISAPI module.

 

Can anyone offer any help?