{"id":7783,"date":"2014-05-18T05:06:28","date_gmt":"2014-05-17T19:06:28","guid":{"rendered":"http:\/\/www.rjmprogramming.com.au\/wordpress\/?p=7783"},"modified":"2016-03-03T11:44:27","modified_gmt":"2016-03-03T01:44:27","slug":"apache-centos-webserver-and-the-three-ps-primer-tutorial","status":"publish","type":"post","link":"https:\/\/www.rjmprogramming.com.au\/ITblog\/apache-centos-webserver-and-the-three-ps-primer-tutorial\/","title":{"rendered":"Apache CentOS WebServer and The Three Ps Primer Tutorial"},"content":{"rendered":"
\"Apache<\/a>

Apache CentOS WebServer and The Three Ps Primer Tutorial (try twirling round bottom of image for a synopsis ... 'do the twirl now')<\/p><\/div>\n

Today’s tutorial shows a web scenario that utilizes The Three P’s with the rjmprogramming.com.au Apache CentOS web server ( at http:\/\/www.rjmprogramming.com.au\/ ), building on the previous relevant Apache WebServer on Mac and The Three P’s Primer Tutorial<\/a>, as shown below, which truly integrated the Three P’s on a Mac laptop (Mac OSX 10.7.5, Apache\/2.2.22 (Unix), mod_wsgi\/3.3, Python\/2.6.7, PHP\/5.3.15) opening up its Web Sharing arrangements, which, itself, built on the previous Perl Form Validation Primer Tutorial<\/a>. Please note that any additional MAMP local WebServer can live with this arrangement as a separate local webserver on http:\/\/localhost:8888\/<\/p>\n

The scenario of full control over your web server is most likely on a local webserver, but, often with hosted arrangements, you are not allowed to have things your way, and the rjmprogramming.com.au CentOS hosting has PHP as the server-side language, with Perl as the cgi-bin language, leaving out our Slytherin<\/a><\/i> friend, Python. However, as mentioned in yesterday<\/a>‘s Python List Primer Tutorial<\/a>, there is a way to use the Three P’s together as a team, even so, making use of the PHP exec<\/a><\/i> command.<\/p>\n

So what is the role of the Three P’s today … well, Python = First Witch, PHP = Second Witch and Perl = Third Witch … yes, we create a webpage for Macbeth Act 1 Scene 1 by William Shakespeare. To be honest, my first idea was to splice Lionel Ritchie’s Hello<\/a> into Jenny<\/a> by Flight of the Conchords (you may be pleased to know it couldn’t be made to work?!).<\/p>\n

The way it works is that PHP supervises Python and Perl via exec<\/i>, piecing together the Scene with background imagery and effects (when you run the tutorial<\/a>, there will be sound).<\/p>\n

Download PHP source code and rename to conversation_supervisor.php<\/a>
\nDownload Perl programming source code and rename to conversation1.perl<\/a>, conversation2.perl<\/a>, conversation3.perl<\/a>
\nDownload Python programming source code and rename to conversation1.py<\/a>, conversation2.py<\/a>, conversation3.py<\/a><\/p>\n

Remember with the Perl and Python in these scenarios that the execute bit of the file permissions should be set.<\/p>\n<\/p>\n

Thanks to:<\/p>\n