updating an array question

[filn]

hey all.. need a little help.. im working on modifing an existing script, the script has a form that on submit all the data goes into one main array that gets updated in the database. i want to add additional fields to the form, but not additional fields to the database, so I want to send the data collected in several forms into one var in the array thats going to be updated in the database.

for example, i want to put the contents of a new form fields called 'address' and 'phone' and 'fax' into the exsiting 'description' filed that gets updated in the database.

i cant figure out how to do this.

[ClarkF1]

you could have something like

$description = $_POST['address'].",".$_POST['fax'].",".$_POST['phone'];

mysql_query("UPDATE database SET description = '".mysql_real_escape_string($description)."' WHERE id = '$id'");