How to use php to simulate multiple data sending through a socket _ PHP Tutorial

Php simulates how a socket sends data multiple times. Table 4: Socket function name description socket_accept () accepts a Socket connection socket_bind () to bind the socket to an IP address and port socket_clear_error () to clear the socket Error or

Table 4: Socket functions
Function name description
Socket_accept () accepts a Socket connection
Socket_bind () binds the socket to an IP address and port.
Socket_clear_error () clears socket errors or the final error code
Socket_close () closes a socket resource
Socket_connect () starts a socket connection
Socket_create_listen () opens a socket listener on the specified port.
Socket_create_pair () generates a pair of identical sockets into an array.
Socket_create () generates a socket, which is equivalent to the data structure of a socket.
Socket_get_option () obtain the socket option
Socket_getpeername () obtains the IP address of a remote host similar to that of a remote host.
Socket_getsockname () gets the IP address of the local socket
Socket_iovec_add () add a new vector to a scattered/aggregated array
Socket_iovec_alloc () this function creates an iovec data structure that can send and receive read/write data.
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 () obtains the final error code of the current socket.
Socket_listen () listens to all connections from the specified socket
Socket_read () reads data of the specified length
Socket_readv () reads data from scattered/aggregate arrays
Socket_recv () ends data from the socket to the cache
Socket_recvfrom () accepts data from the specified socket. If no value is specified, the current socket is used by default.
Socket_recvmsg () receives messages from iovec
Socket_select () multi-path selection
Socket_send () this function sends data to the connected socket
Socket_sendmsg () sends a message to the socket
Socket_sendto () sends a message to the socket of the specified address
Socket_set_block () is set to block mode in socket
Set the socket in socket_set_nonblock () to non-block mode.
Socket_set_option () sets socket options
The socket_shutdown () function allows you to close the read, write, or specified socket
Socket_strerror () returns a detailed error of the specified error number
Socket_write () writes data to the socket cache
Socket_writev () writes data to a distributed/aggregate array

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 // Post. php
Function Post ($ host, $ port)
{
// $ Host = "127.0.0.1 ";
// Establish a connection
$ Conn = fsockopen ($ host, $ port );
If (! $ Conn)
{
Die ("Con error ");
}
// Send data 5 times in a loop
//
For ($ I = 0; $ I <5; $ I ++)
{
$ Data = "user_name = admin". $ I;
WriteData ($ conn, $ host, $ data );
Echo $ I ."
";
}
    
Fclose ($ conn );
}

Function WriteData ($ conn, $ host, $ data)
{
$ Header = "POST/test. php HTTP/1.1rn ";
$ Header. = "Host: {$ host} rn ";
$ Header. = "Content-type: application/x-www-form-urlencodedrn ";
$ Header. = "Content-Length:". strlen ($ data). "rn ";
// Keep-Alive is the key
$ Header. = "Connection: Keep-Alivernrn ";
$ Header. = "{$ data} rnrn ";
    
Fwrite ($ conn, $ header );
    
// Obtain the result
// $ Result = '';
// While (! Feof ($ conn ))
//{
// $ Result. = fgets ($ conn, 128 );
//}
// Return $ result;
}

Post ('1970. 0.0.1 ', 80 );
    
?>

     //test.php
    $fp = fopen('result.txt','a');
    $data = $_POST['user_name']." -- ". date('Y-m-d H:i:s')."rn";
    fwrite($fp,$data);
    fclose($fp);
?>

Simulate post to achieve user login

Socket. php

 
 

  /**
  
  
* @ Author macopad@qq.com
  
  
* Simulate the socket to send post data
  
  
* The sending file is socket. php.
  
  
* The received data is get_socket.php.
  
  
* @ Var unknown_type
  
  
*/
  
  
$ Flag = 0;
  
  
// Data to be post
  
  
$ Argv = array (
  
  
'Username' => 'macopad @ qq.com ',
  
  
'Password' => 'macopad'
  
  
);
  
  
// Construct the string to post
  
  
$ Params = ";
  
  
Foreach ($ argv as $ key => $ value)
  
  
{
  
  
If ($ flag! = 0)
  
  
{
  
  
$ Params. = "&";
  
  
$ Flag = 1;
  
  
}
  
  
$ Params. = $ key. "= ";
  
  
$ Params. = urlencode ($ value );
  
  
$ Flag = 1;
  
  
}
  
  
$ Length = strlen ($ params); // The length of post
  
  
// Create a socket connection
  
  
$ Post = fsockopen ($ HTTP_SERVER_VARS ["SERVER_ADDR"], 80, $ errno, $ errstr, 10) or exit ($ errstr. "->". $ errno );
  
  
// Construct the post request header
  
  
$ Header = "POST/guojinyong/test/get_socket.php HTTP/1.1rn"; // the data submitted by the POST method and the page and protocol type to be submitted
  
  
$ Header. = "Host:". $ HTTP_SERVER_VARS ["SERVER_ADDR"]. "rn"; // defines the Host
  
  
$ Header. = "Referer: http: //". $ HTTP_SERVER_VARS ["SERVER_ADDR"]. "/guojinyong/test/socket. phprn"; // Referer information,
  
  
$ Header. = "Content-Type: application/x-www-form-urlencodedrn"; // indicates that the request is POST
  
  
$ Header. = "Content-Length:". $ length. "rn"; // The Length of the submitted data
  
  
$ Header. = "Connection: Closernrn"; // close the Connection
  
  
$ Header. = $ params. "rn"; // add the post string
  
  
// Send post data
  
  
Fputs ($ post, $ header );
  
  
// Receive and print the data returned by get_socket.php
  
  
While (! Feof ($ post ))
  
  
{
  
  
Echo fgets ($ post, 1024); // get it after 1024 bytes
  
  
}
  
  
Fclose ($ post); // Close the socket connection
  
  
?>
 
 

Get_socket.php

 
 

  
  
   Echo "Set-Cookie: name = Macopad; expires = Fri 12-Nov-99 3:59:59 GMT ";
$ UserName = "";
$ Password = "";
$ UserName = $ _ POST ['username'];
$ Password = $ _ POST ['password'];
Echo"
Send data through the socket simulation program!
";
Echo "the current server is:". $ HTTP_SERVER_VARS ["SERVER_ADDR"]."
";
Echo "the user name received is:". $ userName ."
The received password is: ". $ password;
Display result
HTTP/1.1 200 OK Date: Wed, 14 Apr 2010 06:49:07 GMT Server: Apache X-Powered-By: PHP/5.2.5 Cache-Control: max-age = 0 Expires: Wed, 14 Apr 2010 06:49:07 GMT Vary: Accept-Encoding Content-Length: 189 Connection: close Content-Type: text/html Set-Cookie: name = Macopad; expires = Fri 12-Nov-99 3:59:59 GMT
Send data through the socket simulation program!
Current server: http://www.zhutiai.com
  
  
The user name received is: macopad@qq.com
The password received is macopad.
 
 

Et_accept () accepts a Socket connection socket_bind () to bind the socket to an IP address and port. socket_clear_error () clears the socket Error or...