©
This document uses PHP Chinese website manual Release
(PHP 4 >= 4.1.0, PHP 5)
socket_send — Sends data to a connected socket
$socket
, string $buf
, int $len
, int $flags
)
The function socket_send() sends
len
bytes to the socket
socket
from buf
.
socket
A valid socket resource created with socket_create() or socket_accept() .
buf
A buffer containing the data that will be sent to the remote host.
len
The number of bytes that will be sent to the remote host from
buf
.
flags
The value of flags
can be any combination of
the following flags, joined with the binary OR (|)
operator.
MSG_OOB | Send OOB (out-of-band) data. |
MSG_EOR | Indicate a record mark. The sent data completes the record. |
MSG_EOF | Close the sender side of the socket and include an appropriate notification of this at the end of the sent data. The sent data completes the transaction. |
MSG_DONTROUTE | Bypass routing, use direct interface. |
socket_send() returns the number of bytes sent, or FALSE
on error.
[#1] jo at edarta dot be [2008-03-27 06:00:13]
In php-5.2.0, there's no MSG_EOF anymore. This is not even needed if you make sure you handle writes and close of sockets correctly.
[#2] KingOfDos [2005-11-08 07:41:56]
I changed the Magic Packet function to this. I beleave that an function may not return any value, only an true/false (in the most way's).
<?PHP
function wol_magic_packet($mac,$addr='255.255.255.255') {
//Requirements__________________________
// You need to load the php_sockets.dll (in case of Windows, don't
// know @ linux, compile with --socket-support i beleave ).
// Otherwise he cannot find the socket_create function
//Usage________________________________
// $addr:
// You will send and broadcast tho this addres.
// Normaly you need to use the 255.255.255.255 adres, so i made it as default. So you don't need
// to do anything with this.
// $mac:
// You will WAKE-UP this WOL-enabled computer, you need to add the MAC-addres here.
//
//Return________________________________
// TRUE: When socked was created succesvolly and the message has been send.
// FALSE: Something went wrong
//
//Example_1_____________________________
// When the message has been send you will see the message "Done...."
//
// if ( wol_magic_packet ( '00:00:00:00:00:00' ) )
// echo 'Done...';
// else
// echo 'Error while sending';
//
//Example_2_____________________________
// To loop more computers:
//
// $arr = array(
// '00:00:00:00:00:00',
// '00:00:00:00:00:00'
// );
// foreach($arr as $this_id => $this_mac)
// if (! wol_magic_packet ( $this_mac ))
// echo 'Error while sending to ['. $this_mac .']<br />'."\r\n";
//___________________________________________
//Check if it's an real MAC-addres and split it into an array
if (!preg_match("/([A-F0-9]{2}[-:]){5}[A-F0-9]{2}/",$mac,$maccheck))
return false;
$addr_byte = preg_split("/[-:]/",$maccheck[0]);
//Creating hardware adress
$hw_addr = '';
for ($a=0; $a < 6; $a++)//Changing mac adres from HEXEDECIMAL to DECIMAL
$hw_addr .= chr(hexdec($addr_byte[$a]));
//Create package data
$msg = str_repeat(chr(255),6);
for ($a = 1; $a <= 16; $a++)
$msg .= $hw_addr;
//Sending data
if ( //If
function_exists('socket_create') AND //socket_create exists
$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP) AND //Can create the socket
$sock_data = socket_connect($sock, $addr, 2050) //Can connect to the socket
) { //Then
$sock_data = socket_set_option($sock, SOL_SOCKET, SO_BROADCAST, 1); //Set
$sock_data = socket_write($sock, $msg, strlen($msg)); //Send data
socket_close($sock); //Close socket
return true;
} else //Esle? :P
return false;
}
?>