On Sun, 2010-07-04 at 18:23 -0400, David Mehler wrote:
> Hello everyone,
> Thanks for your suggestions.
> For my variable in the value area of the text input field I enter
>
> value="<?php echo $name"; ?>
>
> Prior to this I assign the variable $name to:
>
> $name = stripslashes($_POST['name']);
>
> I hope this is correct.
> Sticky forms sounds exactly what i'm looking for. I've changed my
> action attribute to
>
> <?php echo $_SERVER['PHP_SELF']; ?>
>
> The first thing I do once the page is loaded is check whether or not
> submit is set, if it is not I display the form, which is in a function
> call. If submit is set I want to begtin validation, so i'm deciding to
> merge my two files in to one, I like this better. My question is say
> for example the name text field is not filled out but all the other
> required fields are how do I get the form to redisplay itself? I was
> thinking a location redirect, but this doesn't sound right.
> Thanks.
> Dave.
>
>
> On 7/4/10, Paul M Foster <paulf@xxxxxxxxxxxxxxxxx> wrote:
> > On Sun, Jul 04, 2010 at 01:57:01PM -0400, David Mehler wrote:
> >
> >> Hello,
> >> I've got a form with several required fields of different types. I
> >> want to have the php script process it only when all the required
> >> fields are present, and to redisplay the form with filled in values on
> >> failure so the user won't have to fill out the whole thing again.
> >> One of my required fields is a text input field called name. If it's
> >> not filled out the form displayed will show this:
> >>
> >> <input type="text" name="name" id="name" size="50" value="<?php
> >> echo($name); ?>" /> <br />
> >>
> >> Note, I've got $_POST* variable processing before this so am assigning
> >> that processing to short variables.
> >> If that field is filled out, but another required one is not that form
> >> field will fill in the value entered for the name field.
> >> This is working for my text input fields, but not for either select
> >> boxes or textareas. Here's the textarea also a required field:
> >>
> >> <textarea name="description" id="description" cols="50" rows="10"
> >> value="<?php echo($description); ?>"></textarea>
> >
> > Textarea fields don't work this way. To display the prior value, you
> > have to do this:
> >
> > <textarea name="description><?php echo $description; ?></textarea>
> >
> >>
> >> What this does, if a user fills out this field, but misses another, it
> >> should echo the value of what was originally submitted. It is not
> >> doing this. Same for my select boxes, here's one:
> >>
> >> <select name="type" id="type" value="<?php echo($type); ?>">
> >> <option value="0" selected="selected">-- select type --</option>
> >> <option value="meeting"> - Meeting - </option>
> >> <option value="event"> - Event - </option>
> >> </select>
> >
> > The "value" attribute of a select field won't do this for you. You have
> > to actually set up each option with an either/or choice, like this:
> >
> > <option value="0" <?php if ($type == 'meeting') echo 'selected="selected"';
> > ?>> - Meeting - </option>
> >
> > Since doing this is pretty tedious, I use a function here instead:
> >
> > function set_selected($fieldname, $value)
> > {
> > if ($_POST[$fieldname] == $value)
> > echo 'selected="selected"';
> > }
> >
> > And then
> >
> > <option value="meeting" <?php set_selected('type', 'meeting');
> > ?>>Meeting</option>
> >
> > HTH,
> >
> > Paul
> >
> > --
> > Paul M. Foster
> >
> > --
> > PHP General Mailing List (http://www.php.net/)
> > To unsubscribe, visit: http://www.php.net/unsub.php
> >
> >
>
$_SERVER['PHP_SELF'] is not to be trusted, and shouldn't be used as the
action of a form like this.
http://www.mc2design.com/blog/php_self-safe-alternatives explains it all
better than I can here, so it's worth a read, but it does list safe
alternatives.
One thing I do when creating sticky select lists is this:
$colours = array('red', 'green', 'blue', 'yellow', 'pink');
echo '<select name="colour">';
for($i=0; $i<count($colours); $i++)
{
$selected = (isset($_POST['colour']) && $_POST['colour'] ==
$i)?'selected="selected"':'';
echo "<option value=\"$i\" $selected>{$colours[$i]}</option>";
}
echo '</select>';
Basically, this uses PHP to not only output the list from an array
(which itself can be populated from a database maybe) and select the
right option if it exists in the $_POST array and matches the current
option in the loop that's being output.
Thanks,
Ash
http://www.ashleysheridan.co.uk
