使用PHP将数组插入MySQL

Question

So I have created a test that is all multiple choice.One of the questions is a has checkboxes.

<br><br><b><div><legend><p style="margin-right:20px"><font color="red">*</font>
15.) Select your favorite colors (select all that apply)</legend></b><br><br>
<input type="checkbox" name="q15[]" id ="multi61" value="a" class="css-checkboxbox" ><label for="multi61" class="css-labelbox radGroup1"> Red </label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<input type="checkbox" name="q15[]" id ="multi62" value="b" class="css-checkboxbox" ><label for="multi62" class="css-labelbox radGroup1"> Black </label><br><br>
<input type="checkbox" name="q15[]" id ="multi63" value="c" class="css-checkboxbox" ><label for="multi63" class="css-labelbox radGroup1"> Blue </label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<input type="checkbox" name="q15[]" id ="multi64" value="d" class="css-checkboxbox" ><label for="multi64" class="css-labelbox radGroup1"> Green </label><br>
</p></div>

The problem that I'm having is that when you select multiple options, the values are added into an array. I want to add these values to one column. I know that I can't put a whole array into one column. There are two options:

1. To add each item into its own column
2. Put all values into one string

But I can't figure out how to do either.

Answer 1

If you are allowing user to select multiple answers, then it is fine with your string, goes into one column. This can be done in either two ways.

1. Serialize And UnSerialize array of multiple answers.
2. JSON encoding/decoding of array of multiple answers.