get data from database to a radio button

[mdvignesh]

I have page with male female radio button

 

Here's the code

 

$qry=mysql_query("SELECT * FROM reg_table where id=$id ");

$res=mysql_fetch_array($qry);

$radio = $res['gender'];

switch($radio)
{ 
   case "male":
   $mal = "checked";
   break; 
   case "female":
   $fem = "checked";
   break; 
} 

 

Gender: <br />
<input type="radio" name="colour" value="male" checked="<?php $mal; ?>" />Male
<input type="radio" name="colour" value="female" checked="<?php $fem; ?>" />Female

 

 

Whats the use of checked in

<input type="radio" name="colour" value="male" checked="<?php $mal; ?>" />

 

 

 

[scootstah]

It "checks" the radio button.

[dungpt29]

Try the following code:

<input type="radio" name="colour" value="male" 
    <?php if ($mal == "checked")
    {
    ?>
        checked
    <?php       
    }
    ?> />
<input type="radio" name="colour" value="female"  
    <?php if ($fem == "checked")
    {
    ?>
        checked
    <?php       
    }
    ?>/>

[PaulRyan]

Why keep jumping in and out of PHP tags dungpt29?

 

Use this, as it will not produce any errors when error reporting is turned on (and it should be)

<?PHP

  error_reporting(-1);

  $qry=mysql_query("SELECT * FROM reg_table where id=$id ");

  $res=mysql_fetch_array($qry);

  $radio = $res['gender'];

  switch($radio) {
    case 'male':
      $mal = true;
    break;
    case 'female':
      $fem = true;
    break;
  }

?>

Gender: <br />
<input type="radio" name="colour" value="male" <?php echo isset($mal) ? 'checked' : '' ; ?> />Male
<input type="radio" name="colour" value="female" <?php echo isset($fem) ? 'checked' : '' ; ?> />Female

*Edit - Should the name of the check boxes be "gender" and not "colour"?

[Barand]

The easiest way is use a loop, which is just the same code whether you have 2 or 200 options. The source for the loop can be a query or an array. For this example I'll use an array.

<?php
$qry=mysql_query("SELECT * FROM reg_table where id=$id ");
$res=mysql_fetch_array($qry);
$radio = $res['gender'];

$genders = array (
            'male'   => 'Male',
            'female' => 'Female'
            );

$genderOptions = '';
foreach ($genders as $val => $text) {
    $chk = $val==$radio ? "checked='checked'" : '';
    $genderOptions .= "<input type='radio' name='gender' value='$val' $chk />$text<br>";
}

echo "Gender<br>$genderOptions";
?>

[mac_gyver]

dungpt29, please don't bump year old threads that have been answered. the OP asked "Whats the use of checked in ..." and the first reply answered the question.