RE: [PHP] Need some advice concerning forms (multi select pulldown) and arrays

Shouldn't it be count($_REQUEST['animals']) and count($_REQUEST['animals'][2]), etc... ?? ---John Holmes... > -----Original Message----- > From: Victor Spång Arthursson [mailto:scooterbabe@mac.com] > Sent: Sunday, May 26, 2002 1:29 PM > To: holmes072000@charter.net; php-general@lists.php.net > Subject: Re: [PHP] Need some advice concerning forms (multi select > pulldown) and arrays > > Ok, I can't get this right... > > Have the following code: > > <? > > $choices = array(1 => 'dog', 2 => 'cat', 3 => > 'mouse', 4 => 'frog'); > > if (is_array($_REQUEST['animals'])) > { > // get the number of selectcases > echo "get the number of selectcases: " . count($animals) . > "<br>"; > > // get the number of provided selects from select with name > "2" > echo "get the number of provided selects from select with name > \"2\": " . count($animals[2]) . "<br>"; > > // test to print some data > echo $animals[2][0]. "<br>"; > echo $animals[2][1]. "<br>"; > echo $animals[2][2]. "<br>"; > echo $animals[2][3]. "<br>"; > } > ?> > <form method="post" action="<?= $_SERVER['PHP_SELF'] > ?>"> > <select multiple name="animals[2]"> > <option value='1'>dog</option> > <option value='2'>cat</option> > <option value='3'>mouse</option> > <option value='4'>frog</option> > </select> > > <select multiple name="animals[4]"> > <option value='1'>dog</option> > <option value='2'>cat</option> > <option value='3'>mouse</option> > <option value='4'>frog</option> > </select> > <input type="submit"></form> > > Why does it not work? > > // get the number of selectcases > echo "get the number of selectcases: " . count($animals) . > "<br>"; > > This works great > > // get the number of provided selects from select with name > "2" > echo "get the number of provided selects from select with name > \"2\": " . count($animals[2]) . "<br>"; > > But this doesn't... > > Thankful for any help, > > /Victor > > On Sunday, May 26, 2002, at 05:35 PM, John Holmes wrote: > > > You can supply an "whateverID" for the select if you want to. > > > > <select name="select[]"> > > <option ... > > </select> > > > > <select name="select[]"> > > <option ... > > </select> > > > > etc... > > > > That will give you an array $select[] on the processing page. If the > > selects are multi-selects, you'll have a multidimensional array. The > > first chosen element in the first select box can be referenced like this > > > > $select[0][0] > > > > You can get a count of how many select boxes there are by doing > > > > count($select); > > > > You can get a count of how many elements were selected within a select > > you can do this: > > > > count($select[x]); > > > > Where x is the number of the select box you want to know about. > > > > Confusing, eh? > > > > ---John Holmes... > > > >> -----Original Message----- > >> From: Victor Spång Arthursson [mailto:scooterbabe@mac.com] > >> Sent: Sunday, May 26, 2002 7:44 AM > >> To: holmes072000@charter.net > >> Subject: Re: [PHP] Need some advice concerning forms (multi select > >> pulldown) and arrays > >> > >> > >> On Sunday, May 26, 2002, at 01:14 PM, John Holmes wrote: > >> > >>> Just give each select its own name. > >> > >> Can't do that, don't know from time to time how many there'll be.... > > And > >> I've to have some case which iterates on the following page... > >> > >>> Or name them all the same followed > >>> by an [] and you'll end up with a multi-dimensional array if things > > go > >>> right... > >> > >> Sounds better - but I've a lot of items and I'ld like to know which of > >> the arrays that go to which item... Can I just write > >> …name=array[whateverid] and then in some way reveal the whateverid's? > >> > >> Sincerely > >> > >> Victor > > > >