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Posted by Jerry Stuckle on 01/14/08 22:58
wes.waters@gmail.com wrote:
> First post here, so please go easy on me. I'm certainly a novice at
> best using PHP/MySQL.
>
> I have a table containing ID_NO, Name, SPRIDEN_ID. This table
> contains information about event attendees. This data must later be
> cleansed and SPRIDEN_ID should be added to this table if the attendee
> is a constituent of ours or set to NULL (rather than deleted) if they
> are not a constituent.
>
> Since I am using MySQL and PHP I have created a web form that allows
> the data to be cleansed. The PHP page simply extracts all attendee
> information where the SPRIDEN_ID is not NULL or = 0 (as the column is
> defined as INT, this is the default) and creates a php table where
> each row provides the option to 1. input a SPRIDEN_ID in a text field
> or 2. mark the SPRIDEN_ID as null via a checkbox. The user should
> have functionality that will allow them to cleanse however many rows
> they so choose in one sitting, adding SPRIDEN_ID or marking SPRIDEN_ID
> as NULL until an indefinite point, then press submit and have the
> updates applied using MySQL to the database table, whether they have
> cleansed all the rows of data or not.
>
> Since this is a webform that is built off dynamic content, it creates
> a row in the php table for every row in the database table where the
> SPRIDEN_ID meets the above criteria. The field names, however, are
> named the same thing over and over. I have found that this does not
> work well, as the $_POST array reads these are key collisions and only
> stores the final instance. What is the optimal way to name my form
> fields here? Should I prepend an iterated number to each form field
> name and then split it out into an associative array while reading the
> $_POST data? Should I use php EXTR_PREFIX_ALL?
>
> I have found little documentation on this problem and have been
> searching for awhile. Any help would be greatly appreciated.
>
First of all, NULL is not the same as 0. 0 is a value. NULL is
specifically the lack of a value, and is handled differently.
As to your problem - does each row have a unique id (primary key)? If
not, it should have.
I normally build the name of the checkbox by concatenating the id to a
prefix. Then it's an easy job to split off the id which needs to be
checked.
--
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Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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