Saturday, October 19, 2002, 2:48:14 PM, you wrote:
SM> Have a question that im trying to figure out how to resolve. I have a field type 
in mysql that is of the enum type. Unless youre familiar with Dungeons and Dragons, 
you wont get what the values
SM> mean, but hopefully youll get the gist anyway. I have a column labelled school 
which holds an enum data type comprised of the values 1 through 40. From the website 
front end, where the data is
SM> being entered, i want to display, ideally a series of checkboxes, otherwise a list 
which would allow a user to select multiple items in that will translate into this 
enum field. For instance, a
SM> series of checkboxes with items such as abjuration, conjuration, divination, and 
others, which will all have a numeric value which gets plugged into the enum field. 
for instance, if a user
SM> selected abjuration, and divination, it would be plugged into sql as 1, 3 (or 
however enum data is input into its column). That being the case how do i utilize php 
to get this to work? what kind
SM> of form elements etc... The problem im seeing with checkboxes are that they are 
discreet and dont group together, so i cant get all the data to go into one column in 
mysql. Hopefully i havent
SM> horribly confused the issue and some kind soul out there can tell me how to send 
this data across. As a double nice thing...how would you write it to pull the data 
back out...ie, convert 1, 3 to
SM> show abjuration, divination? Thanks for the help in advance. 

 I have never used enum type but I am sure it is not what you want as
 it will only store one item from a predefined list not a list of
 items. What you need to do is create an array of the selected items,
 serialize() it to store in the database in a varchar or mediumtext if
 it going to get big. Then when you read it back unserialize and loop
 through all the options setting "checked" if it is in the array.
 To keep the checkboxes grouped name them like this:
 <input type="checkbox" name="school[1]">
 <input type="checkbox" name="school[2]">
 <input type="checkbox" name="school[3]">

 That will show up as an array under $_POST['school']
 so you can serialize it as is and store it.

 if(isset($_POST['school'])) $school = serialize($_POST['school']);

 Playback is simple too

  $school = unserialize($row['school']);
  for($i = 1;$i < 41;$i++){
         echo '<input type="checkbox" name="school['.$i.']"';
         if(isset($school[$i])) echo ' checked';
         echo '>';

  Un-checked boxes are not returned in the post and checked ones
  return Yes I think.


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