Socket context options

(No version information available, might be only in CVS)

Socket context options — Socket context option listing

Description

Socket context options are available for all wrappers that work over sockets, like tcp, http and ftp.

Options

bindto: Used to specify the IP address (either IPv4 or IPv6) and/or the port number that PHP will use to access the network. The syntax is ip:port. Setting the IP or the port to 0 will let the system choose the IP and/or port.

Note: As FTP creates two socket connections during normal operation, the port number cannot be specified using this option.

ChangeLog

Version Description

5.1.0 Added bindto.

Examples

Example #1 Basic bindto usage example


<?php

// connect to the internet using the '192.168.0.100' IP

$opts = array(

    'socket' => array(

        'bindto' => '192.168.0.100:0',

    ),

);





// connect to the internet using the '192.168.0.100' IP and port '7000'

$opts = array(

    'socket' => array(

        'bindto' => '192.168.0.100:7000',

    ),

);





// connect to the internet using port '7000'

$opts = array(

    'socket' => array(

        'bindto' => '0:7000',

    ),

);





// create the context...

$context = stream_context_create($opts);



// ...and use it to fetch the data

echo file_get_contents('http://www.example.com', false, $context);



?>