include

[canadabeeau]

Hi I have this way of licensing my PHP application, and I want to know if you guys can answer some questions with it.

So there is the index.php on the server of the person who bought it (www.client.com/index.php) now it has this as part of its code (in basic terms)

<?php autenticatkey($key);?>

Now if autenticatkey has it as being valid it does

<?php include "http://www.mywebsite.com/projects/myproject.php";?>

 

What I need to know if someone can see the code in myproject.php, can they somehow download myproject.php and how can i prevent this if they can, thanks in advance.

[vinpkl]

the visitor will see only the html part that php file will output.

 

he cannot see your php code or download your php file.

 

vineet

[canadabeeau]

vinpkl is there any way anyone get get that file, in terms of its code (between <?php and ?>)?? or not? is it just NOT possible at all.

[canadabeeau]

or am I wrong in thinking this?

[vinpkl]

what ever your code echoes

<?php
$name = 'vineet';
echo $name;
?>

 

from the above code the visitor will just see "hello" nothing else. he will not able to see your variables name.

 

no php code is visible to visitor.  what ever your php outputs as html only that is visible.

 

and javascript is visible.

 

vineet

[ignace]

However if your code is distributed among many servers who are not hosted by you (which is why you would want to implement such functionality) will your customer or someone who they know that unlucky for you knows PHP code can easily alter your code so that authenticatkey() will always return true.

[canadabeeau]

ignace any idea on how I could go about this then?

Do you think that, what if the function was called from functions.php (on my server) and then they could not make it always true, or they could but it would do nothing as it would be processing all on my server side :-)

Does anyone think this can/will work

[canadabeeau]

any ideas?

[BloodyMind]

you can obfuscate the code, or compile it

[canadabeeau]

BloodyMind, I have heard of obfuscate but compiling?? Do you mean into a web based exe? In essence what will PHP compiling do? compared to obfuscating??

[BloodyMind]

no, there is no exe on linux, ZendGuard compiles the code into binary I guess,  I never used it though, obfuscating worked fine for me

[canadabeeau]

so whats compiling?

[BloodyMind]

converting the code to machine language binary/ASCII

for more info : http://en.wikipedia.org/wiki/Compiling