While it is interesting to consider how the internet would be now had that
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Zend Framework in Action (Ch01) Manning Publications Co. 21
alternative approach been taken, the key point is that RPC is one solution among many, including the internet
itself, to the need to have disparate applications talking to each other.
Just as a further note, because RPC mediates between one application and another, it can be classified
under the term middleware, which, partly due to the fact that it sounds like marketing-speak, isn??™t particularly
interesting until you notice that amongst the others in that classification is SQL.
Clearly XML-RPC has therefore enough credentials to add to any proposal: It is based on technology
established over thirty years ago, which was partly proposed as an alternative to today??™s internet and shares the
same problem solving area as the language through which we converse with databases. Thus having
determined that XML-RPC has a suitable lineage and with the addition of XML, enough youth to keep it
vibrant, we can move on to actually using Zend Framework??™s implementation.
The example we are going to work through is an implementation of the various blog application
programming interfaces (API) that allow blog editors an alternative method of adding, editing and deleting
blog entries using desktop or other remote applications.
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