Re: Invoking functions stored in a separate directory?

On Fri, 21 Aug 2009 15:16:11 +0200, akuhl@telkomsa.net ("Arno Kuhl") wrote: >-----Original Message----- >From: Clancy [mailto:clancy_1@cybec.com.au] >Sent: 21 August 2009 01:26 PM >To: php-general@lists.php.net >Subject: [PHP] Invoking functions stored in a separate directory? > >I am developing an idea for a website engine which can be shared between >several different websites. Each website would have its own directory under >a common root directory, and the engine would be in a separate directory >Engine: > >Root >Website_1.com, Website_2.com, Engine > >The website directories would each contain the design data for that website, >consisting basically of a mixture of text files and images. The various >pages would be loaded by loading index.php from the website root directory, >and specifying a number of parameters e.g. > >http://www.corybas.com/index.php?path=Holidays&level=0&item=0 > >I have the minimum amount of code in index.php -- just enough to set some >parameters to identify the website, and then include >../Engine/Main_prog.php. This in turn can include any of a large number of >other include files to carry out particular functions. ..................................... > >Using include ../Engine/Main_prog.php won't work for you in a production >environment. You need to create a path.php file that defines the absolute >path to the engine for each website, and include it at the top of your >website script. Then you can do something like: > > include ENGINEPATH."Main_prog.php"; Thank you very much for this. It has at last provided the clue I was looking for, and after far too long I have got a trivially simple demonstration working. One complication I hadn't anticipated is that apparently I can only access functions in the include file, but cannot execute any code in it. Thus when Halla.php read: <?php echo '<p>Eng_test_'.__LINE__.' Hallejuha!! : </p>'; ?> and I included it: $ok = define ('HOST_PATH','../Engine'); $ok = include (HOST_PATH.'/Halla.php'); nothing happened. When Halla.php read: <?php function halla ($i) { echo '<p>Eng_test_'.__LINE__.' Hallejuha!! : '.$i.'</p>'; return $i; } ?> and I included it: $ok = define ('HOST_PATH','../Engine'); $ok = include (HOST_PATH.'/Halla.php'); $ok = halla (7); echo '<p> Returned '.$ok'</p>'; it did work. I presume that this explains your next comment, in that I am neither reading nor executing the code in the Include, so permissions don't come into it. >You shouldn't really have permission problems as long as your website and >engine are on the same server. ... >One other advantage it will give you for your particualr design is that you >can have multiple engines per server (e.g. Engine1, Engine2, etc) so that >you can bring one engine down for upgrade while still keeping sites running >on the other engines. Yes; I have got already got all that working. Now I JUST have to convert my main program into one big function! Will I still be able to access $_GET & $_POST variables, and set up session variables from inside this function? I guess I can declare them all GLOBAL? Thanks, again,