How to save multiple checkbox values in the database table

First and foremost checkbox name should be in array format as shown in below code

because name with out array declaration cannot send multiple values.

html code

<input type="checkbox" name="hobbies[]" value="Reading Books">Reading Books	 
<input type="checkbox" name="hobbies[]" value="Playing Games">Playing Games 
<input type="checkbox" name="hobbies[]" value="Listening to music">Listening to music 

while getting the data using post method into php

Php code will like this

$hobbies = implode(",",$_POST['hobbies']);

here $_POST['hobbies'] will return array value and we cannot store array value into database.

The implode() function returns a string from the elements of an array.

by using any separator like ,/.#$% we can convert array into string