Passing 'selected' option via URL

MercuryMan

Take the following example:

<select name="package" style="FONT-FAMILY: Verdana; FONT-SIZE: 11px">
	<option value="hostingbronze" >HOSTING: Bronze</option>
	<option value="hostingsilver" >HOSTING: Silver</option>
	<option value="hostinggold" >HOSTING: Gold</option>
	<option value="hostingplatinum" selected>HOSTING: Platinum</option>
	<option value="resellerstartup" >RESELLER: Startup</option>
	<option value="resellerpro" >RESELLER: Professional</option>
	<option value="resellerenterprise" >RESELLER: Enterprise</option>
	<option value="resellerenterpriseplus" >RESELLER: Enterprise+</option>
</select>

This displays a listbox with a number of options, but the "hostingplatinum" option is selected by default.

I would like to be able to provide the "selected" option via a URL, e.g. http://mydomain.com/select.php?package=resellerstartup.

How can I code this with PHP so the selected option appears dynamically based on the URL supplied? Ideally I should still be able to provide a default option if no variable is passed on the URL.

Thanks,
MercuryMan

LordShryku

for each option, you can do a quick conditional to see i it was passed, i so, echo selected. The default will be your top option if nothing is passed.

<option value="hostingbronze" <?=($_GET['package']=="hostingbronze")?" selected":""?>>HOSTING: Bronze</option>

MercuryMan

Thanks, that works nicely when an argument is passed, but not when just "order.php" is called in the URL. This generates errors for each line in the listbox as follows:

Notice: Undefined index: package in order.php on line 163 >HOSTING: Bronze

Any ideas how to fix this?

Many thanks,
MercuryMan

feldon23

$packageoptions = array(
  'hostingbronze' => 'HOSTING: Bronze',
  'hostingsilver' => 'HOSTING: Silver',
  'hostinggold' => 'HOSTING: Gold',
  'hostingplatinum' => 'HOSTING: Platinum',
  'resellerstartup' => 'RESELLER: Startup',
  'resellerpro' => 'RESELLER: Professional',
  'resellerenterprise' => 'RESELLER: Enterprise',
  'resellerenterpriseplus' => 'RESELLER: Enterprise+');

$package = $_GET['package'];

echo "<select name=\"package\" style=\"FONT-FAMILY: Verdana; FONT-SIZE: 11px\">\n";

foreach($packageoptions as $key => $value) {
  $tmp = "";
  if ($package == $key) {
    $tmp = " SELECTED";
  }  

  echo "<option value=\"$key\"$tmp>$value</option>\n";
}

echo "</select>\n";

LordShryku

I think that may still give him an error. Using the same code feldon just posted(arrays are easier), but you need to add an isset() check in there.

$packageoptions = array(
  'hostingbronze' => 'HOSTING: Bronze',
  'hostingsilver' => 'HOSTING: Silver',
  'hostinggold' => 'HOSTING: Gold',
  'hostingplatinum' => 'HOSTING: Platinum',
  'resellerstartup' => 'RESELLER: Startup',
  'resellerpro' => 'RESELLER: Professional',
  'resellerenterprise' => 'RESELLER: Enterprise',
  'resellerenterpriseplus' => 'RESELLER: Enterprise+');

if(isset($_GET['package'])) {
   $package = $_GET['package'];
}

echo "<select name=\"package\" style=\"FONT-FAMILY: Verdana; FONT-SIZE: 11px\">\n";

foreach($packageoptions as $key => $value) {
  $tmp = "";
  if(isset($package)) {
    if($package == $key) {
      $tmp = " SELECTED";
    }
  }  

  echo "<option value=\"$key\"$tmp>$value</option>\n";
}

echo "</select>\n";