Re: question about select tag in php

Sudhakar wrote:
> i have two select tags as part of a registration form, city1 city2
> where city1 has a list of regions and similar for city2
>
> there are different regions for city1 and city2 so instead of all the
> regions appearing one after the other i would like to create a blank
> option followed by the next set of regions for formatting purpose
> only.
>
> ex=
>
>
> value="region1">Select region1
>
> value="nameofregion1">nameofregion1
> value="0"> > option>
>
> value="nameofregion2">nameofregion2
> value="1"> > option>
>
>
>
>
>
> value="region2">Select region2
>
> value="nameofregion1">nameofregion1
> value="2"> > option>
>
> value="nameofregion2">nameofregion2
> value="3"> > option>
>
>
>
>
> from a php validation perspective if a user does not select any of the
> regions or both the regions i am displaying an error message asking
> them to either select 1 region from either city1 or city2
>
> as of now there is a blank option being displayed which is working
> fine, i am having an issue with the php validation.
>
> until i introduced value=0 my rules for validating the select tag
> were:
>
> 1. user cannot leave both the select tags with the default option
> which is "Select region1" & "Select region2"
> 2. user cannot select both the regions from city1 & city2 select tags
>
> the code of 2. is
> if(!($city1 == "region1") && !($city2 == "region2"))
> {
> $error.="Please select only 1 Region
";
> }
>
>
> now by introducing > "SELECTED";}?> value="0"> there is a conflict with the above
> php validation code used in point 2.
>
> 1.
> is it correct to use 1,2,3 as part of the following tag or
> should i only use 0 everywhere
> value="0"> > option>
> value="1"> > option>
>
> 2.
> how can i get around the conflict that is being created by introducing
> this value=0 with
> if(!($city1 == "region1") && !($city2 == "region2"))
> {
> $error.="Please select only 1 Region
";
> }
> as i need the above php code and i also need the blank space for
> formatting purpose
>
> please advice.
>
> thanks.
>

I don't think I'd have both the city and the region in the same select
box. Have one for the city, then another for the region in the city.
Use Javascript or Ajax to populate the Region box based on the City
selected.


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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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