====PHP Driver Files: link.php====

This file provides the user with a web user-interface for setting up the address for your individual data link (the connection between a property and a data source).

The structure is very similar to that of [[configure-source_php|configure-source.php]].

Below is an example from the [[ardiadminguide:ardi-text|text driver]].

<code php>

<?php
	if (!isset($address)) $address = "";
?>

<tr><td><label>Lookup:</label></td><td><input type="text" name="name" value="<?php echo $address;?>"/></td></tr>

</code>

There are two distinct sections of the file.

===Loading Values===

First, we setup our default values. If there is already an existing address for this data link, we then replace those defaults with the values from that existing address.

===Presenting the UI===

Then, we present the UI to our users in an HTML table.

Each option starts with a **label**, followed by the **input** controls needed.

<code html>
<tr><td><label>My Label</label></td><td>...</td></tr>
</code>

When the user saves this information, the [[encode_php|encode.php]] file is called to take the various properties and copy them to a single string - the address that is sent to your Python driver in the //points//.