Php-cli
CLI: Command line Interface interface, PHP can not rely on Apache IIS and through the CLI command line interface to run, because the essence of PHP is C program;
PHP_CLI mode is supported under both Windows and Linux Note: php5 after Php.exe is the CLI
In the Windows environment:
Eg:d:\>d:\mysoft\phpstudy\php53n\php.exe D:\mysoft\phpstudy\WWW\self\server.php [Server]eg:d:\>d:\mysoft\ Phpstudy\php53n\php.exe D:\mysoft\phpstudy\WWW\self\server.php [Client] Sample code: <?php
/**
* File name server.php
* Server-side code
*
* @author Guisu.huang
* @since 2012-04-11
*
*/
Ensure that the client is not timed out when connecting
Set_time_limit (0);
Set IP and port number
$address = "127.0.0.1";
$port = 2053; When debugging, you can change the port to test the program!
/**
* Create a socket
* af_inet= is IPv4 if IPv6 is used, the parameter is Af_inet6
* Sock_stream is the TCP type of the socket, and if it is UDP use Sock_dgram
*/
$sock = Socket_create (Af_inet, Sock_stream, sol_tcp) or Die ("Socket_create () failed due to:". Socket_strerror (Socket_last_error ()). "/n");
Blocking mode
Socket_set_block ($sock) or Die ("Socket_set_block () failure is due to:". Socket_strerror (Socket_last_error ()). "/n");
Bind to socket port
$result = Socket_bind ($sock, $address, $port) or Die ("Socket_bind () failed due to:". Socket_strerror (Socket_last_error ()). "/n");
Start listening.
$result = Socket_listen ($sock, 4) or Die ("Socket_listen () failed due to:". Socket_strerror (Socket_last_error ()). "/n");
echo "ok\nbinding the socket on $address: $port ... ";
echo "Ok\nnow ready-to-accept connections.\nlistening on the socket ... \ n";
Do {//Never stop the daemon
It receives the connection request and invokes a child connection socket to handle the information between the client and the server
$msgsock = socket_accept ($sock) or Die ("Socket_accept () Failed:reason:". Socket_strerror (Socket_last_error ()). "/n");
Read client data
echo "Read client data \ n";
The Socket_read function reads the client data until it encounters the \n,\t or the/s character. The PHP script considers this character to be the input terminator.
$buf = Socket_read ($msgsock, 8192);
echo "Received msg: $buf \ n";
Data transfer writes the returned results to the client
$msg = "Welcome \ n";
Socket_write ($msgsock, $msg, strlen ($msg)) or Die ("Socket_write () Failed:reason:". Socket_strerror (Socket_last_error ()). " /n ");
Once the output is returned to the client, the parent/child socket should be terminated by the Socket_close ($msgsock) function
Socket_close ($msgsock);
} while (true);
Socket_close ($sock); Client: client.php<?php
/**
* File name:client.php
* Client Code
*
* @author Guisu.huang
* @since 2012-04-11
*/
Set_time_limit (0);
$host = "127.0.0.1";
$port = 2053;
$socket = Socket_create (Af_inet, Sock_stream, sol_tcp) or Die ("Could not create socket\n"); Create a socket
$connection = Socket_connect ($socket, $host, $port) or Die ("Could not connet server\n"); Connection
Socket_write ($socket, "hellofindyoufindme socket") or Die ("Write failed\n"); Data transfer sends a message to the server
while ($buff = Socket_read ($socket, 1024x768, php_normal_read)) {
Echo ("Response was:".) $buff. "\ n");
}
Socket_close ($socket);? > with CLI above the eg, please combine your own file location; the output of the server.php is:
The following occurs on the client.php side:
This is because the program executes the Socket_close ();
The above is a startup and execution instance:
Also talk about the characteristics of PHP-CLI or the advantages:
Advantages:
1. Using multiple processes, the kernel is responsible for reclaiming resources after the child process is finished
2. With multiple processes, a child process exception exit does not cause the entire process thread to exit. The parent process also has the opportunity to rebuild the process.
3. A permanent master process, which is responsible for the distribution of tasks, is more logically understood.
CLI command-line interface for PHP
