Problem while using xampp 1.7.4

In my old system I was using xampp 1.7.1 with windows xp and developed one php project. It worked well. Now I install xampp 1.7.4. in another开发者_如何转开发 system and run the same project in this xampp.But it is not working properly.

Accessing undefined variable in php 5.2.9 is not showing any error(I used this previously). But the same code (accessing undefined variable) does not works in php 5.3.4 (Now using). showing the 'undefined index' error

How to solve this issue?

Thanks in advance!

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In Php 5.3 you should declare/initialize all the variables used in the coding.