Linking to WHMCS is one of the first things to do after you set up WHMCS. You can create login or product links for the Client Area, a shortcut to a ticket submission form, or an order form purchase link.

• For code to add a domain availability check, login form, or domain purchase link to your website, go to Utilities > Integration Code in the Admin Area.
• You may also want to use data feeds.

Links #

You can use the following URLs to link to WHMCS:

Product Links #

You can find the links for each product in the Links tab when you edit the product at Configuration () > System Settings > Products/Services:

You can copy the following direct links for the product and its associated group:

Constructing Links #

You can append additional variables and values onto links to customize them:

Configurable Options #

You can also create your own configurable options.

To create a configurable option URL:

1. Step through the order process normally until you reach the product configuration step.
2. Right click and select View Source.
3. Retrieve the field names and value IDs. You can use these in your direct link URLs.

For example:

<p class="cartsubheading">Configurable Options</p>
<p>This product or service has some options that you can choose to customise your
order.</p>

<div class="cartbox">
<table cellspacing="0" cellpadding="0">
<tr><td>Disk Space:</td><td width="5"></td><td>
<input type="text" name="configoption[1]" value="100" size="5"> x 1MB $0.00USD
</td></tr>
</table>
</div>

You would then use http://example.com/whmcs/cart.php?a=add&pid=1&configoption[1]=100 as the link URL, setting the value of the first configurable option to 100.

Custom Fields #

You can also create your own custom fields using a similar method to creating configurable options.

For example, the following link would prefill the custom field option, the day of the week, with the value Friday:

http://example.com/whmcs/cart.php?a=add&pid=5&cf_dayofweek=Friday

You can skip the configuration page entirely if you have defined all of the configuration values in the URL by adding &skipconfig=1 to your order URL. If there is missing configuration data, this would generate an error and force the client to edit the configuration. For example:

http://example.com/whmcs/cart.php?a=add&pid=5&cf_dayofweek=Friday&skipconfig=1

Custom field names must not contain any special characters other than underscores in order to prefill custom fields within a URL. For example, daté-óf-bírth becomes dateofbirth.

Addons #

You can link to the order form with preselected addons using a URL like this:

http://example.com/whmcs/cart.php?a=add&pid=1&addons[1]

The number is the ID of the addon that you specified.

You can add multiple addons in this format:

http://example.com/whmcs/cart.php?a=add&pid=1&addons[1]&addons[2]

Setting the Language or Template via the URL #

You can set the language or template to display to the user with the link you use. For example:

http://example.com/whmcs/index.php?systpl=portal
http://example.com/whmcs/index.php?language=Spanish
http://example.com/whmcs/index.php?systpl=portal&language=Spanish
http://example.com/whmcs/cart.php?systpl=portal&language=English&gid=1
http://example.com/whmcs/cart.php?systpl=portal&language=Spanish&a=add&pid=1

You can combine these, use them on any page, and use them with the direct order links.

Specifying Currency in a link #

You can link to the order form with a preselected currency (and, optionally, a language) using a URL like this:

The ID of a currency is the unique ID for it within the tblcurrencies database table. You can find this within the database or by examing the number at the end of the URL when editing the currency within the Admin Area.

Support Ticket Links #

You can link to the create ticket page with a number of predefined settings, all of which are interchangeable.

Displaying Announcements on your Site #

Announcements are available in RSS feed format. This is the recommended way of retrieving and displaying announcements in an external system or page.

For convenience, on a local site, you may wish to retrieve announcements directly from the database. The following code sample demonstrates one method:

    <?php

    use WHMCS\Database\Capsule;

    require_once 'members/init.php';

    $data = Capsule::table('tblannouncements')
                ->where('published', '!=', '0')
                ->where('published', '!=', '')
                ->orderBy('date', 'DESC')
                ->limit(3)
                ->get();

    foreach ($data as $announcement) {
        $id = $announcement->id;
        $date = $announcement->date;
        $title = $announcement->title;
        $body = $announcement->announcement;

        $date = fromMySQLDate($date);

        echo "<strong>{$title}</strong><br />"
            . "Posted on {$date}<br /><br />"
            . $body . "<br /><br />";
    }

This code assumes that you store WHMCS in the members subdirectory. Update the file include path for your setup.

Last modified: June 14, 2024