Php - testing if a radio button is selected and get the value

Question

I\'m using php. I\'d like to know how can I test if a radio button is selected and get the value? i can test if the radio button is selected but i cannot get the value. I c

Answer 1

It's pretty simple, take a look at the code below:

The form:

  Answer 1 

  Answer 2 

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  Answer 4 

  

PHP code: