pull and update data to SAP business one using PHP
<p>I want to integrate my php system with SAP business one to pull and update data such as customers, accounts, payments,..</p>

<p>I came through this following link but not sure where to download the api:
<a href="http://scn.sap.com/docs/DOC-7722?rid=/webcontent/uuid/df2bb865-0b01-0010-778f-cdf63a6c192a" rel="nofollow">http://scn.sap.com/docs/DOC-7722?rid=/webcontent/uuid/df2bb865-0b01-0010-778f-cdf63a6c192a</a></p>

<p>I have also came through this (see correct answer) which suggests 3 ways of implementing this, but not sure how it works.
<a href="http://scn.sap.com/thread/855060" rel="nofollow">http://scn.sap.com/thread/855060</a></p>

<p>I am totally new to SAP, so please help me with suggestions on the best way to achieve this. 
Note: I dont have access to an SAP instance at the moment. Just doing initial explorations and getting ideas on the ways to achieve this.</p>