Summary of the series of functions related to socket in php_PHP tutorial

Summary of the series of socket functions in PHP

This article lists all the functions that use socket-related services in the PHP language. Note that before using the following functions, you need to ensure that your socket is open. If you have not opened it, please edit your php.ini file and remove the comment (semicolon) in front of the following line:

The code is as follows:

extension=php_sockets.dll

If you cannot remove the comment, please use the following code to load the extension library:

The code is as follows:

　if(!extension_loaded('sockets')){

　if(strtoupper(substr(PHP_OS,3))=="WIN"){

　dl('php_sockets.dll');

　}else{

　dl('sockets.so');

　}

　}

If you don’t know whether your socket is open, then you can use the phpinfo() function to determine whether the socket is open. You can check whether the socket is open by checking the phpinfo information.

php socket related functions are as follows:

The code is as follows:

Socket_accept() accepts a Socket connection

Socket_bind() binds the socket to an IP address and port

Socket_clear_error() clears the socket error or the last error code

Socket_close() closes a socket resource

　socket_connect() starts a socket connection

　socket_create_listen() opens a socket listening on the specified port

　socket_create_pair() generates a pair of indistinguishable sockets into an array

Socket_create() generates a socket, which is equivalent to generating a socket data structure

　socket_get_option() Gets socket options

Socket_getpeername() Gets the IP address of a remote similar host

Socket_getsockname() Gets the IP address of the local socket

　socket_iovec_add() adds a new vector to a scatter/aggregate array

　socket_iovec_alloc() This function creates an iovec data structure that can be sent, received, read and written

　socket_iovec_delete() deletes an allocated iovec

Socket_iovec_fetch() returns the data of the specified iovec resource

Socket_iovec_free() releases an iovec resource

　socket_iovec_set() sets the new value of iovec data

Socket_last_error() Gets the last error code of the current socket

Socket_listen() listens to all connections from the specified socket

　socket_read() reads data of specified length

　socket_readv() reads data from the scatter/aggregate array

Socket_recv() ends the data from the socket to the cache

Socket_recvfrom() accepts data from the specified socket. If not specified, it defaults to the current socket

Socket_recvmsg() receives messages from iovec

　socket_select() Multiple selection

　socket_send() This function sends data to the connected socket

　socket_sendmsg() sends a message to socket

　socket_sendto() sends a message to the socket at the specified address

　socket_set_block() Set the socket to block mode

　socket_set_nonblock() Set the socket to non-block mode

　socket_set_option() Set socket options

Socket_shutdown() This function allows you to close reading, writing, or the specified socket

Socket_strerror() returns the detailed error of the specified error number

Socket_write() writes data to the socket cache

　socket_writev() writes data to the scatter/aggregate array