Keep in mind, the primary purpose of Kannel is to allow a linux box to
send SMS messages either through a cell phone, or through another SMS
provider.
As such, your not going to find a lot directly on Kannel and PHP, it's
not relevant.
The codeword to search for is:
SMPP, MM1 and MM7 . I will note that a brief google search doesn't show
much good info. Mainly, I believe, because the protocols themselves are
so simple and trivial, that once you implement it most people don't even
see it being worth their time to document. There does seem to be a PEAR
library for SMPP, http://pear.php.net/package/Net_SMPP_Client
That one seems to be targetted for communicating with your own PHP built
SMPP server using the SMPP Server pear module. However, assuming the
protocol calls follow the standards, you should be able to use it with
Kannels as well.
There is also one for "SMS" http://pear.php.net/package/Net_SMS
Browsing that package, it looks like a generic set of interfaces to
either clickatell, vodafone, a generic smtp to SMS gateway, and a
generic http gateway.
I'd attack the solution in stages.
Stage 1:
Download and setup your PHP script to use the ClickATell PHP libary.
Spend a few bucks on buying credits from them, and get your PHP
programming working first.
Stage 2a:
Get your kannel server configured and working correctly. IIRC it comes
with a simply web interface for sending SMS messages. Since this is a
simple post/get to a URL, you can adapt your PHP program to post the
message data through the web interface.
OR
Stage 2b:
Give the Pear SMPP module a try with ClickATell, since they do support
the SMPP protocol. If you can get it working with a generic set of
function calls, than in stage 3 try Kannel with SMPP.
Stage 3:
Look into MM7, MM1, or SMPP and work out the protocols and then adapt
your ClickATell script for Kannel(make new functions to replace the
ClickATell ones that implement the SMS protocol you choose)
One thing I'd recommend is hunting around for C SDK's for SMS messages
and compiling their samples to give you a command line interface for
testing against the various protocols. IE if you can get a stock SMPP
based command line program sending messages, than you know you aren't
dealing with problems in your protocols.
Another alternative is to give NowSMS a try, as their forums are a bit
more well trafficed for integration solutions, and then switch to Kannel
once you have NowSMS funcitoning(NowSMS is a *shudder* windows program
that provides the same functionality as Kannel+Mbuni ie SMS and MMS
messages. IIRC the lowest license for it was 500-1000, with a 60 day
demo. Worth giving it a try to jumpstart development, and then
determining once you have everything working if it is more cost
effective to buy the license or fiddle with Kannel, and then Mbuni if
your looking for MMS messages)
As a last alternative, my memory also prods me that Kannel comes with a
a sample program for processing email messages and converting them to
SMS messages. So for purely sending messages, you can give that a try.
Hmmmm, so...after all of that, I guess my first question should have
been: What is it you want to do with PHP regarding cell phone messaging?
Send text messages? Send text and multimedia messages(ClickATell
can't send multimedia without hoops)? Receive text messages(ClickATell
falls flat there). Receive text and multimedia messages? And do you
want to do this with an attached cell phone, or through a text message
service?(Kannel supports both).
(I've looked into and played with SMS on a number of occassions, but the
either the projects never materialized so I didn't take it to the
implementation level, or I found a commercial interface such as
ClickATell, which worked out to be more cost effective).
Lastly, now that I've given you all the various bits and pieces, here is
my advice: For pure text messages, assuming you were considering Kannel,
forget EVERYTHING I said above. Your wasting time on a single solution.
If you can run a Kannel server, than you can run an AIM message bot. So
you can send text messages by AIM. And AIM will send text messages to
most cell phone carriers - for free and without sticking advertising on
them.
So if you implement a PHP to AIM gateway instead, you will have 2 way
functionality, the ability to send messages to instant message clients
AND cell phones, and if your smart and use a multi-system connector like
your own jabber server, you can send messages to most other major
instant message applications.
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