Question

I am trying to enter a record in the database. This record consists of the following :
1) Unique facebook id
2) name
3) Favorite car of the person

While the first parameter I get using the graph API from facebook, the other two are entered by the user using HTML forms using some code like this :

<form action="insert.php" method="post">
            Name <input type="text" name="Name" /></br>
            Fav car: <input type="text" name="car" /></br>
            <input type="submit" />
        </form>

Now the “insert.php” script will insert the record with the database. How can I pass the first parameter, i.e. the ID, which is something that insert.php needs, but it is not a user-entered parameter.

Answer 1

Use a hidden parameter as follows (I assume your PHP variable containing the ID is $facebookId):

<form action="insert.php" method="post">
   <input type="hidden" name="facebook_id" id="facebook_id" value="<?php echo $facebookId?>"/>
   Name <input type="text" name="Name" /></br>
   Fav car: <input type="text" name="car" /></br>
   <input type="submit" />
</form>

You could also use pure Javascript (I assume you stored the Facebook GraphID response in facebookResponse)

<script type="text/javascript">
   $(document).ready(function() {
       document.getElementById("facebook_id").value = facebookResponse["id"];
   }
</script>