Daily Report - List Entries

Hello,

I am trying to create a report that is run daily via cron which will list all entries for that day.

I am creating from plain old PHP (ie: i'm not using wordpress/gravity forms functions whatsoever).

All is well, I can get all the data, but how do I get the NAMES of the fields?

How do I know what each 'field_number' means?

Do I need to look at a meta table and unserialize some text into a PHP array?

$result = mysql_query("
        SELECT wp_rg_lead.id,
               wp_rg_lead.form_id,
               wp_rg_lead.post_id,
               wp_rg_lead.date_created,
               wp_rg_lead.ip,
               wp_rg_lead.source_url,
               wp_rg_lead.user_agent ,
               wp_rg_lead_detail.field_number,
               wp_rg_lead_detail.value,
               wp_rg_lead_detail_long.value as long_value
        FROM wp_rg_lead LEFT JOIN wp_rg_lead_detail ON wp_rg_lead.id = wp_rg_lead_detail.lead_id
                        LEFT JOIN wp_rg_lead_detail_long ON wp_rg_lead_detail.id = wp_rg_lead_detail_long.lead_detail_id
        ORDER BY date_created DESC; ");

    echo "<table>";

    // build leads into array
    $leads = array();
    while ($row = mysql_fetch_assoc($result)) {
        // if the lead isnt in the array, then add it
        if (!isset($leads[$row['id']])) {
            $leads[$row['id']] = $row;
        }

        // store the data and field
        $leads[$row['id']]['fields'][$row['field_number']] = $row['value'];
    }

    $doneHeader = false;
    foreach ($leads as $id => $lead) {
        // if we haven't done the table header, then do it
        if (!$doneHeader) {
            echo "<tr>";
            foreach ($lead as $name => $value)
                echo "<th>{$name}</th>";
            echo "</tr>";
            $doneHeader = true;
        }

        echo "<tr>";
        foreach ($lead as $name => $value) {
            if ($name == 'fields') {
                echo "<td>";
                foreach ($value as $fid => $fv) {
                    echo "{$fv}<br>";
                }
                echo "</td>";
            } else {
                echo "<td>{$value}</td>";
            }
        }

        echo "</tr>";
    }
    echo "</table>";