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PHP

Socket Programming With PHP
By: icarus, (c) Melonfire
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    2002-02-05


    Table of Contents:
  • Socket Programming With PHP
  • Putting It All Together
  • Fortune's Fool
  • Looping The Loop
  • On Web-bed Feet
  • Different Strokes
  • POP Goes The Weasel
  • Access Denied
  • Game Over

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    Socket Programming With PHP - Putting It All Together
    ( Page 2 of 9 )

    Now, how about seeing it in action? Since this script generates an "always-on" socket, it isn't a good idea to run it via your Web server; instead, you might prefer to run it from the command line via the PHP binary:

    $ /usr/local/bin/php -q server.php
    In case you don't have a PHP binary, it's fairly easy to compile one - just follow the installation instructions for compiling a static Apache module (these instructions are available in the PHP distribution), but omit the "--with-apache" parameter to the "configure" script.

    Note the additional -q parameter to PHP - this tells the program to suppress the "Content-Type: text/html" header that it usually adds when executing a script (I don't need this header here because the output of this script isn't going to a browser).

    Once the script has been executed and the socket server is active, you can simply telnet to it using any standard telnet application, and send it a string of characters as input. The server should respond with the reversed string, and then terminate the connection. Here's what it looks like:

    $ telnet 192.168.1.99 1234 Trying 192.168.1.99... Connected to medusa. Escape character is '^]'. jack and the beanstalk klatsnaeb eht dna kcaj Connection closed by foreign host.


     
     
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