Array output to multiple select box

Anon

Hi there,

I try to let output an array to an multiple selectbox by

<?
print "
print "<select name=\"zusatzbezeichnung[]\" size=\"11\" multiple>";

if (in_array("Keine",$zusatzwerte)){
print "<option value=\"Keine\" selected>Keine</option>";
}else{
print "<option value=\"Keine\">Keine</option>";
}
if(in_array("Chirotherapie",$zusatzwerte)){
print "<option value=\"Chirotherapie\" selected>Chirotherapie</option>";
}else{
print "<option value=\"Chirotherapie\">Chirotherapie</option>";
}
//and so on...
print"</select>";
?>

but in this way only the first value in array gets selected and rewritten to the db, how can I care for a "multiple selection"?

Thanks

danwatt

First off, the first line "print "" needs to go, since it will cause errors.
I copied your code, with one slight modification to the beginning:
$zusatzwerte=array("Keine","Chirotherapie");
This makes sure that the $zusatzwerte array is populated with the two choices. I ran the script, and both were selected. The only thing I can think of is that your $zusatzerte array is not populated correctly. You can always do a print_r($zusatzerte); to see whats in it.

Anon

Hi Dan,

Dan Watt wrote:

First off, the first line "print "" needs to go, since it will cause errors.
Of course, it was just a copy-error..

The only thing I can think of is that your $zusatzerte array is not populated correctly.
Thanks for the great hint! That was it! $zusatzwerte is an exploded string and it didn't correspond to the implode...
Now I have another question:
One of my options is an undefined status, it should always been selected, if the array is emty, "undefined". I've tried

if ((in_array("Unbestimmt",$zusatzwerte))||(!in_array($zusatzwerte))){
print "<option value=\"Unbestimmt\" selected>Unbestimmt</option>";
}else{
print "<option value=\"Unbestimmt\">Unbestimmt</option>";

It works quiet well, but if another option than "Unbestimmt" is selected, "Unbestimmt" still keeps selected.
Can yuo help a second time?

Thanks

Maik

danwatt

The problem is the || (or) (!in_array($zusatzwerte)

You did not include the first parameter (the string you are searching for) on that second call to in_array(). Im surprised you are not getting error messages.

Also, be careful here about the use of ! (NOT). If your second call to in_array searches for "Unbestimmt" as well, simple boolean algebra reveals : A OR NOT A=TRUE, thust you will end up with TRUE all the time.