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PHP : Function Reference : Socket Functions : socket_getsockname

socket_getsockname

Queries the local side of the given socket which may either result in host/port or in a Unix filesystem path, dependent on its type (PHP 4 >= 4.0.7, PHP 5)
bool socket_getsockname ( resource socket, string &addr [, int &port] )

Note:

socket_getsockname() should not be used with AF_UNIX sockets created with socket_connect(). Only sockets created with socket_accept() or a primary server socket following a call to socket_bind() will return meaningful values.

Parameters

socket

A valid socket resource created with socket_create() or socket_accept().

addr

If the given socket is of type AF_INET or AF_INET6, socket_getsockname() will return the local IP address in appropriate notation (e.g. 127.0.0.1 or fe80::1) in the address parameter and, if the optional port parameter is present, also the associated port.

If the given socket is of type AF_UNIX, socket_getsockname() will return the Unix filesystem path (e.g. /var/run/daemon.sock) in the address parameter.

port

If provided, this will hold the associated port.

Return Values

Returns TRUE on success or FALSE on failure. socket_getsockname() may also return FALSE if the socket type is not any of AF_INET, AF_INET6, or AF_UNIX, in which case the last socket error code is not updated.

Examples ( Source code ) » socket_getsockname

<?php

$socket 
socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
socket_bind($socket,'0.0.0.0',150);
socket_getsockname($socket$IP$PORT);
print 
$IP.":".$PORT."\n";
?>

Code Examples / Notes » socket_getsockname

not

Just a quick note:
I found socket_getsockname() is not IPv6 compatible or may just return some unexpected results?
<?php
Simple Code Example:
$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
socket_bind($socket,'0.0.0.0',150);
socket_getsockname($socket, $IP, $PORT);
print $IP.":".$PORT."\n";
?>
This does not print $IP 127.0.0.1 or 192.168.1.1 or even 0.0.0.0 ... etc ... like you would expect ... in my case I receive 10.0.0.0 witch is not a valid port on my system using IPv5 and IPv6! Thus you should rely on using the initial values of socket_bind() to get the local address.
Hope this helps...


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socket_clear_error
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socket_create_listen
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socket_get_option
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socket_getsockname
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socket_recvfrom
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