dynamic select boxes

nilskilander

HI
I have a number of SELECT boxes in a form which uses information from an array in the following manner to "fill in" the data to be displayed.

.....
<select name="select5" size="1">
<option selected>choose</option>';
foreach($player_name_array as $value){
printf("<option>".$value."</option>");
}
echo '
</select>
<select name="select6" size="1">
<option selected>choose</option>';
foreach($player_name_array as $value){
printf("<option>".$value."</option>");
}
.....

Every SELECT tag uses the same array ($player_name_array)
Now, what I need help with is the following:
When the user makes his selection on the webpage I want to remove the element he selected in the dropdown menu from the array in order to only display the remaining elements in the next SELECT box.
I guess I could use onChange in some way, but as far as I know you can only call javascript functions with it so I really dont see how, or?

Please I really need some suggestions how to solve this.
thanks
/Nils

bad_goose

You're trying to make it so they can't choose the same player in more than one selectbox, right? Like a ranking thing?

Well, you can't call PHP functions from onChange, and it would be difficult and unreliable to do what you want using javascript.

I'm working on a PHP script to do something similar to what you want, but slightly different (it will submit to itself after each rank selection is made). Wait a while and I'll have it...

bad_goose

Sweet, I finished it!

This script takes the player names as a comma-delimited list from the querystring. For example, to pass it the players "bob", "bad_goose", "supall", and "player4" , the URL would be:
thisscript.php?players=bob,bad_goose,supall,player4
The chunk of code in the if($flag) section near the end will be executed after all the choices are made.

The script is too big to paste in here, so I attached it.

Hopefully you have php4, because that's what I wrote it for. If not, you can probably adapt it.

nilskilander

Thanks, I just ran the script, it worked perfect. Now I'm gonna try your idea in my own code.

cheers
/Nils