How to rectify json_encode returns null in php web services

Hi friends,
In this post i would like to explain about How to rectify json_encode returns null in php web services. In the previous post we know about How to write a webservices using php with json format . There is small issue with some special character return null when convert the string into json_encode format. Those strings return.

How to rectify json_encode returns null in php web services | Anil Labs

I have removed this post due to some issues . . .