php - how to insert values separated by comma -

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• how insert values comma?in switch statement 2 answers

how insert values database comma.
in quiz app 4 multiple choices. user can take quiz can click next button each time post values this:

$category_id = $_post['category_id']; $answerid = $_post['answerid']; $questionid = $_post['questionid']; $timetaken = $_post['timetaken']; 

each time user can take 10 questions quiz. how save these values following:

    user_id category_id answer_id  questionid  timetaken          1         2     3,4,4,3    1,2,3,4      2,3,4,5<br> 

category_id same 10 questions. how save answer_id, questionid , timetaken values separated comma?

first use dtat type column varchar or text

and in code have array values answer_id, question_id , timetaken.

i mean must set attr name input tag name="answer_id[]".

it lot

and in php code before insert query use impode function comma delimator

something below:

$ansres = implode(",",$_post['answer_id']); 

and use variable in insert query.

it insert value required.

i hope you.