Can't get MCRYPT to work

dave5398

I have a hosted server and a test server at home. My hosted one is running Ubuntu 6.06 and my home one Ubuntu server 8.04. I installed php5 on the home server just doing apt-get php5. I ran the trial script with mcrypt (as in php help) and it worked fine. I tried it on the hosted server but it failed with an "undefined function" error. I ran apt-get install php5-mcrypt but it came back and told me mcrypt was up to date. I checked and found the so file in: /usr/lib/php5/20051025/mcrypt.so (together with mysql.so, gd.so and so on). On the other hand at home its in: /usr/lib/php5/20060613+lfs.

Unfortunately I'm new to Linux installations and I do not know how to tell php about the mcrypt installation. I assume that having a shared object means I do not need to recompile php (which I don't fancy trying!) which is confusing because the help seems to suggest you have to - so what's going on there?

Can someone help tell me first what is wrong and second what do I need to do to make this work.

Dave

bpat1434

Should just be able to add the extension to the list of extensions in php.ini

extension=mcrypt.so

Just make sure it's not already there. You could also do a quick [man]phpinfo/man to see what's installed. You can then see all the details about mcrypt (which version it is, what algorithms are available, etc.).

dave5398

Thanks I worked that out.

Big new question - where can I find documentation to develop custom extensions? I have developed some shared objects in C++ but I need somehow to tell php about it. Just playing the same trick of putting extension=mystuff.so does not work and Googling has failed me this time. Is there any documentation anywhere??

Dave

bpat1434

Article
Pretty-good article on PHP Extensions.

Then of course, there's the ever faithful Zend DevZone 😉

dave5398

Thanks a lot! Ever faithful Zend DevZone article looks exactly what I need - why did it not google I wonder. Hope to "Hello World" tomorrow and stuff in all my C++ code thereafter - would be nice.

Dave

bpat1434

Umm... it did google 🙁 I googled for something like "Custom PHP Extension" and it was maybe 4th or 5th?

Glad could help you out though.