selected item in a select tag

Question

hi everybody i have a problem please help me i have 4 select tag in my php page and when i post my parameters to my page all of select tags clear and i want my selected item dont change - excuse me for my bad english

Answer 1

Use $_SESSION
http://php.net/manual/en/features.sessions.php

Answer 2

When outputting the option elements, check if the submitted value matches the value you are are adding and add a selected attribute.

e.g.

$test = $_POST['name_of_select'];  // This should be outside the loop
$v = htmlspecialchars($data['value'],ENT_QUOTES);
$d = htmlspecialchars($data['display_value'],ENT_QUOTES);
$c = "";
if ($data['value'] === $test) {
    $c = " checked";
}
echo "<option value='$v'$c>$d</option>";

Answer 3

Here's a pretty way to do it in your views

<select name="select">
<?php foreach( $options as $option ): ?>
    <option value="<?php echo $option ?>"<?php if($_POST['select'] == $option):?> checked="checked"<?php endif; ?>>
<?php endforeach; ?>
</select>

This loops through your options and checks the value of the select each time. If the value of the select is the same as the value of the option it checks that specific option.

Answer 4

Let the javascript do it automatically for you:

<select name="myname" id="myid">
  .....
  ...options...
  .....
</select>

Below your select box, put javascript code:

<script type="text/javascript">
  document.getElementById('myid').value = '<?php echo $_POST["myname"];?>';
</script>

and so on for other select boxes.

Note: This works only in best-case scenarios, you should actually do it in PHP only.