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Digg socket_bind
Binds a name to a socket
(PHP 4 >= 4.0.7, PHP 5)
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(). Parameters
Return Values
Returns 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. ExamplesExample 2291. Using socket_bind() to set the source address<?phpNotes
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. Code Examples / Notes » socket_bindphp50613160534 dot 3 dot korkman
Use 0 for port to bind a random (free) port for incoming connections: socket_bind ($socket, $bind_address, 0); socket_getsockname($socket, $socket_address, $socket_port); socket_listen($socket); ... $socket_port contains the assigned port, you might want to send it to a remote client connecting. Tested with php 5.03. gasket
The aforementioned tidbit about using NULL to bind to all addresses did not work for me, as I would receive an error about unknown address. Using a 0 worked for me: socket_bind ($socket, 0, $port) This also allows you to receive UDP broadcasts, which is what I had been trying to figure out. keksov
If you want to reuse address and port, and get rid of error: unable to bind, address already in use, you have to use socket_setopt (check actual spelling for this function in you PHP verison) before calling bind: <?php if (!socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1)) { echo socket_strerror(socket_last_error($sock)); exit; } ?> This solution was found by Christophe Dirac. Thank you Christophe! masuod_a
If you want to connect to server by specified port and you don't know your ip address or you have multiple interface for connecting to network, you can bind null instead of valid ip address like this : <?php $socket=socket_create(AF_INET,SOCK_STREAM,SOL_TCP); $local_port=1023; socket_bind($socket,null,$local_port); socket_connect($socket,$remote_host,$remote_port); ?> |
Change Language
socket_accept socket_bind socket_clear_error socket_close socket_connect socket_create_listen socket_create_pair socket_create socket_get_option socket_getpeername socket_getsockname 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 |
