Checking the correct answer from the database by a checked radio button in PHP -

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I'm creating an online assessment I randomly display all the questions in a question. I have difficulty in checking the correct answer in the database for the radio button that checks me. I do not know what to do and how to do it logic.

This is my PHP code to display randomly, 

  $ view_questions = mysql_query ("Order order by rand () from selection");

This is my html code with php code, 

   
 
 
 Div class = "post-text" itemprop = "text"> 
 It is very easy 
 
 Store questions in the value of the radio buttons and checkboxes, only those values ​​are stored which are checked Let's compare your code after submitting the form to the next page, I hope you will understand what I am trying to say.

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