Re: how to create multiple selects within php

With most any browser nowadays, on a non-multiple select the first option will be selected unless you specifically setup a default. With a multiple select, it will not default to anything and will not even post/get a variable for it at all unless the user specifically selects something, which is why a isset($var) will work for a multiple. On Mon, 18 Oct 2004 07:59:47 -0700, bruce <bedouglas@earthlink.net> wrote: > john... > > the code (and the rfc) seems to suggest otherwise. personally, i would have > thought, if the user doesn't select a menu, then the 'menu item' should not > have anything with regards to the querystring... > > however, the spec implies something different: > http://www.w3.org/TR/REC-html40/interact/forms.html#edef-OPTION > > -------------------- > 17.6.1 Pre-selected options > Zero or more choices may be pre-selected for the user. User agents should > determine which choices are pre-selected as follows: > > If no OPTION element has the selected attribute set, user agent behavior for > choosing which option is initially selected is undefined. Note. Since > existing implementations handle this case differently, the current > specification differs from RFC 1866 ([RFC1866] section 8.1.3), which states: > The initial state has the first option selected, unless a SELECTED attribute > is present on any of the <OPTION> elements. > Since user agent behavior differs, authors should ensure that each menu > includes a default pre-selected OPTION. > --------------------- > > if you can manage to create a sample that has 2 menu lists, each with a few > items that has the behavior you say should occur, i'd like to take a look.. > > i currently have code which lists 3 menus, each of which has a few items in > the list... > > all the menu/lists are within a single form, with a single "inputBTN". > > if the user selects the menu/list for states that has a multiple select, > then the other two lists return their 1st items, even though they haven't > been selected.... > > > > thanks > > -bruce > > -----Original Message----- > From: John Nichel [mailto:john@kegworks.com] > Sent: Monday, October 18, 2004 7:31 AM > To: php-general@lists.php.net > Subject: Re: [PHP] how to create multiple selects within php > > bruce wrote: > > ok... > > > > it appears to be a case of user err.. the spec seems to state that if the > > user doesn't select/specify an item, the select should return the 1st item > > within the list... arrrgggh!! this is what's happening... > > Not true. If the user doesn't select anything, nothing will be > submitted (unless you have one or more of your option tags like this > <option value="bar" selected />) > > > so my question is still, how can i implement some logic that requires the > > user to actually select an item? or, how can i detect when a user has > > actually selected a list item?????? > > Test to see if anything has been submitted. If your select tag is as > such... > > <select name="foo[]" multiple> > > When you submit the form, you can check it like this... > > if ( isset ( $_POST['foo'] ) ) { > //user has selected something > do stuff > } else { > //user did not select anything > do other stuff > } > > -- > John C. Nichel > ÜberGeek > KegWorks.com > 716.856.9675 > john@kegworks.com > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >