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socket_bind

socket_bind

(PHP 4 >= 4.1.0, PHP 5)

socket_bindBinds a name to a socket

说明

bool socket_bind ( resource $socket , string $address [, int $port = 0 ] )

Binds the name given in address to the socket described by socket. This has to be done before a connection is be established using socket_connect() or socket_listen().

参数

socket

A valid socket resource created with socket_create().

address

If the socket is of the AF_INET family, the address is an IP in dotted-quad notation (e.g. 127.0.0.1).

If the socket is of the AF_UNIX family, the address is the path of a Unix-domain socket (e.g. /tmp/my.sock).

port (Optional)

The port parameter is only used when binding an AF_INET socket, and designates the port on which to listen for connections.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

The error code can be retrieved with socket_last_error(). This code may be passed to socket_strerror() to get a textual explanation of the error.

范例

Example #1 Using socket_bind() to set the source address

<?php
// Create a new socket
$sock socket_create(AF_INETSOCK_STREAMSOL_TCP);

// An example list of IP addresses owned by the computer
$sourceips['kevin']    = '127.0.0.1';
$sourceips['madcoder'] = '127.0.0.2';

// Bind the source address
socket_bind($sock$sourceips['madcoder']);

// Connect to destination address
socket_connect($sock'127.0.0.1'80);

// Write
$request 'GET / HTTP/1.1' " " .
           
'Host: example.com' " ";
socket_write($sock$request);

// Close
socket_close($sock);

?>

注释

Note:

This function must be used on the socket before socket_connect().

Note:

Windows 9x/ME compatibility note: socket_last_error() may return an invalid error code if trying to bind the socket to a wrong address that does not belong to your machine.

参见


  • socket_accept
  • socket_bind
  • socket_clear_error
  • socket_close
  • socket_connect
  • socket_create
  • socket_create_listen
  • socket_create_pair
  • socket_getpeername
  • socket_getsockname
  • socket_get_option
  • socket_last_error
  • socket_listen
  • socket_read
  • socket_recv
  • socket_recvfrom
  • socket_select
  • socket_send
  • socket_sendto
  • socket_set_block
  • socket_set_nonblock
  • socket_set_option
  • socket_shutdown
  • socket_strerror
  • socket_write
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