need help with php drop down list

[pxxb]

Hi, I have a drop down scroll list and am trying to get it to remember the selection when I submit. Also I wan't to print an error message if they don't select any provinces or if they select a certain province. How would I do that?

 

<legend> Preferences</legend>
<label for='formProvinces[]'>Province (Multiple Select) *</label><br>
<select size = 12 multiple="multiple" name="formProvinces[] />
<?php foreach ($PROVINCES as $province){ ?>
<option value="US"><?php echo $province; ?></option>
<?php } ?>
</select>

 

--------------------

i was thinking along the lines of this...

 

    if (empty($province)){
    $error[] = 'Must select atleast one province';

    } else if ($province[1]){
    $error[] = 'Please select another province';
    }

 

how do i keep the memory of the selection after submitting? thanks

[Ch0cu3r]

I'm assuming your submitting the form using POST.

 

To preserve the selected values you'll need to see if the current option you are making exists within the $_POST['formProvinces'] array. If it is then add the selected attribute to the <option> tag.

<legend> Preferences</legend>
<label for='formProvinces[]'>Province (Multiple Select) *</label><br>
<select size = 12 multiple="multiple" name="formProvinces[] />
<?php 
foreach ($PROVINCES as $province){ 
   $selected = '';
   if(isset($_POST['formProvinces']) && in_array($provinces, $_POST['formProvinces']))
       $selected = ' selected';
?>
<option value="US"<?php echo $selected; ?>><?php echo $province; ?></option>
<?php } ?>
</select>

 

 

Also I wan't to print an error message if they don't select any provinces or if they select a certain province

You need to check the selected options value. The value of the selected option is what is stored in the $_POST['formProvinces'] array.

[Barand]

It's better if your options all have different values though.