Return JSON with PHP
When bringing Ajax technologies into your websites, it’s almost certain you’ll comes across the need to return data from the backend in a format that JavaScript works well with, such as JSON. With that, PHP is often a popular choice amongst developers for backend programming due to its wide adoption and low cost (FREE!). Thankfully PHP is actively developed and it supports many of todays web standards including JSON.
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Cross-Domain Ajax with Dojo
If you are fairly new to JavaScript development or Ajax programming, you may not know that JavaScript has a limitation in which it cannot make a remote call to a service that is not on the same domain the script was called from. For instance, if I hosted a simple web service at kylehayes.info, I would not be able to access it from this site through the normal methods such as dojo.xhrGet() or dojo.xhrPost(). However, there are a couple of solutions to this issue. One of those is to consume web services that use a format called JSON-P (JSON with padding).
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