... PHP 4 >= 4.1.0) socket_bind -- Binds a name to a socket . int socket_bind ( resource socket, string address [, int port]) . ... The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk. socket_bind() binds the name given in address to the socket described by socket , which must be a valid socket descriptor created with socket_create() . ...