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This section contains the context options supported by the wrappers that
work over sockets, like tcp, http or
ftp.
As of PHP 5.1.0 only one option is supported, bindto,
which can be 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 (you can set the IP or the port number to
0 if you want to let the system choose them for you).
Замечание:
As FTP creates two socket connections during normal operation, you cannot
specify the port number in the bindto option. So, the
only supported syntax is ip:0 for the FTP wrapper.
Пример M-1. Some examples of how to use the bindto option |
<?php
$opts = array('socket' =>
array('bindto' => '192.168.0.100:0'));
$opts = array('socket' =>
array('bindto' => '192.168.0.100:7000'));
$opts = array('socket' =>
array('bindto' => '0:7000'));
$context = stream_context_create($opts);
echo file_get_contents('http://www.example.com', false, $context);
?>
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User Contributed Notes
List of Supported Protocols/Wrappers