I have an array of data.
And I want to know how can I detect duplicate and/or wrong data in array.
This is my array of data:
This data is OK.
Wrong data is wrong when middle letter (like K or any other) is in this array.
Also, wrong data is when we have duplicate values such as 135N269B but not wrong if we have 136N269B.
If you have an idea, or somekind php or visual C# example, I would appreciate your help.