PHP & Radio Button Groups

[cb154]

I have a group of 4 radio buttons. my mysql database knows which one the user selected previously when they stored some information. I now wish to display the same buttons but have radio button checked that the user chose before. I know this can be done but having one of those mind melt moments where I cannot think of the solution

 

so I have 4 buttons that look like this

 

        <input type="radio" name="clarity" id="clarity" value="Opaque">
      Opaque<br>
      <input type="radio" name="clarity" id="clarity" value="Deep">
      Deep<br>
      <input type="radio" name="clarity" id="clarity" value="Mid">
      Mid<br>
      <input type="radio" name="clarity" id="clarity" value="Pale">
      Pale<br></td>

 

I just need to attached a checked field to the correct item

[BlueSkyIS]

I'm usually echoing the form elements, and i prefer single quotes around my element values, so this is what i would do:

 

// Open input tag
echo "<input type='radio' name='clarity' id='clarity' value='Opaque'";

// Add checked if selected
if ($clarity_opaque == 1) { // or however you tell if opaque was selected
     echo " checked='checked'";
}

// Close input tag
echo ">";

[cb154]

indeed I need to perform check for each radio button in the group.

 

sometimes I just need a nudge