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I have an html form on which a user selects numbers from 0x00 to 0xFF.  Each of the 256 numbers has a check box.  They can select as many numbers that apply to them.  The results will be stored in a mysql database.

 

What type of mysql field should this be stored in?  Ideally, only a true or false is needed for each number.  I could store each number selected, or I could store a true/false for each of the 256 possibilities.

 

This is an example of a smaller, brute-force HTML form to collect the numbers:

<form action="checkbox-form.php" method="post">
    Select your numbers<br />
    <table>
       <tr>
            <td><input type="checkbox" name="numbers[]" value="0" />0 </td>
            <td><input type="checkbox" name="numbers[]" value="1" />1 </td>
            <td><input type="checkbox" name="numbers[]" value="2" />2 </td>       
            <td><input type="checkbox" name="numbers[]" value="4" />4 </td>
        </tr>
        <tr>
            <td><input type="checkbox" name="numbers[]" value="10" />A</td>
            <td><input type="checkbox" name="numbers[]" value="11" />B</td>
            <td><input type="checkbox" name="numbers[]" value="12" />C</td>       
            <td><input type="checkbox" name="numbers[]" value="13" />D</td>
        </tr>
     </table>   
    <input type="submit" name="formSubmit" value="Submit" />
</form>

 

 

The question is, how should this numbers[] array be stored in the database?

Note that when pulling from the database, a message will be displayed for each of the 256 entries.

For example the output would be

Number:

0  - Selected

1  - Not Selected

2  - Selected

.

.

254 - Not Selected

255 - Not Selected

 

Thanks  :shrug:

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colors (id, user_id, red, green, blue)

 

If you use my script I provided you earlier, you can insert them like:

 

$user = $_SESSION['id'];

foreach ($_POST['red'] as $key => $value) {
  $red = $value;
  $green = $_POST['green'][$key];
  $blue = $_POST['blue'][$key];
  
  $query = "INSERT INTO colors (user_id, red, green, blue) VALUES ('$user', '$red', '$green', '$blue')";
}

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