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=
<select name="city1">
<option <?php if ($city1=="region1"){echo "SELECTED";}?>
value="region1">Select region1</option>
<option <?php if ($city1=="nameofregion1"){echo "SELECTED";}?>
value="nameofregion1">nameofregion1</option>
<option <?php if ($northisland=="0"){echo "SELECTED";}?value="0"></
option>
<option <?php if ($city1=="nameofregion2"){echo "SELECTED";}?>
value="nameofregion2">nameofregion2</option>
<option <?php if ($northisland=="1"){echo "SELECTED";}?value="1"></
option>
</select>
<select name="city2">
<option <?php if ($city2=="region2"){echo "SELECTED";}?>
value="region2">Select region2</option>
<option <?php if ($city2=="nameofregion1"){echo "SELECTED";}?>
value="nameofregion1">nameofregion1</option>
<option <?php if ($northisland=="2"){echo "SELECTED";}?value="2"></
option>
<option <?php if ($city2=="nameofregion2"){echo "SELECTED";}?>
value="nameofregion2">nameofregion2</option>
<option <?php if ($northisland=="3"){echo "SELECTED";}?value="3"></
option>
</select>
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"))
{
$error.="Please select only 1 Region<br />";
}
now by introducing <option <?php if ($northisland=="0"){echo
"SELECTED";}?value="0"></optionthere 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 <optiontag or
should i only use 0 everywhere
<option <?php if ($northisland=="0"){echo "SELECTED";}?value="0"></
option>
<option <?php if ($northisland=="1"){echo "SELECTED";}?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<br />";
}
as i need the above php code and i also need the blank space for
formatting purpose
please advice.
thanks.
