Retaining listbox selections

[Larry Martell]

I have a listbox and when the user selects items they are highlighted. Then
I process the form and when I generate the next web page (which has the
listbox) I want the selected items still to be highlighted. Can I do this
from PHP when I generate the listbox or must that be done client side from
javascript?

[Stuart Dallas]

Post by Larry Martell
I have a listbox and when the user selects items they are highlighted. Then
I process the form and when I generate the next web page (which has the
listbox) I want the selected items still to be highlighted. Can I do this
from PHP when I generate the listbox or must that be done client side from
javascript?

This is pretty basic HTML. Simply add the attribute selected="selected" to the option tag you want to be selected. You could do it in Javascript, but since you already have PHP generating the form you might as well do it there.

-Stuart

[Larry Martell]

Post by Stuart Dallas

Post by Larry Martell
I have a listbox and when the user selects items they are highlighted. Then
I process the form and when I generate the next web page (which has the
listbox) I want the selected items still to be highlighted. Can I do this
from PHP when I generate the listbox or must that be done client side from
javascript?

This is pretty basic HTML. Simply add the attribute selected="selected" to the option tag you want to be selected. You could do it in Javascript, but since you already have PHP generating the form you might as well do it there.

Thanks.

[Ashley Sheridan]

Post by Larry Martell
I have a listbox and when the user selects items they are highlighted. Then
I process the form and when I generate the next web page (which has the
listbox) I want the selected items still to be highlighted. Can I do this
from PHP when I generate the listbox or must that be done client side from
javascript?

Yes, it's pretty easy, here's an example:

<select name="colour">
<?php
$colours = array('red','blue','green','yellow');

foreach($colours as $colour)
{
$selected = (isset($_POST['colour']) && $colour ==
$_POST['colour'])?'selected="selected"':'';

echo "<option value=\"$colour\" $selected>$colour</option>";
}
?>
</select>
--
Thanks,
Ash
http://www.ashleysheridan.co.uk

[Larry Martell]

On Fri, Dec 20, 2013 at 6:08 PM, Ashley Sheridan

Post by Ashley Sheridan

Post by Larry Martell
I have a listbox and when the user selects items they are highlighted. Then
I process the form and when I generate the next web page (which has the
listbox) I want the selected items still to be highlighted. Can I do this
from PHP when I generate the listbox or must that be done client side from
javascript?

<select name="colour">
<?php
$colours = array('red','blue','green','yellow');
foreach($colours as $colour)
{
$selected = (isset($_POST['colour']) && $colour ==
$_POST['colour'])?'selected="selected"':'';
echo "<option value=\"$colour\" $selected>$colour</option>";
}
?>
</select>

Thanks!