Hooks and Filters

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Add an attachment to emails

You can add a file attachment to your emails by adding the following code to your theme’s functions.php file: Set the email you want the attachment to be included in, and add the path to your file....

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Dynamically populate an ACF field

You can dynamically populate an ACF dropdown field with a list of all the calendars created in the plugin. To do so, add the following code to your theme’s functions.php file. You will have to replace...

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Creating a custom email template

To create your own email template, you will have to override the existing one from the plugin. You can do this by adding the following code to your theme’s functions.php file and specify the path...

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Invoices Add-on: Create a custom invoice template

To create your own invoice template, you will have to override the existing one from the plugin. You can do this by adding the following code to your theme’s functions.php file and specify the path...

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Do something after a form was submitted

If you want to send data to another platform or call an API to pass on the booking data, you can use hook into the form submission action. Syntax add_action('wpbs_submit_form_end', 'your_function', 10,...

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Creating Custom Dynamic Tags

Dynamic tags can be used in email and settings fields to send dynamic data to the customer. You can see a list of all the available tags in the Form -> Dynamic Tags page. If you need to create your...

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Create custom validation rules

You can use the Booking Restrictions add-on to set up some pretty complex booking validation rules, but sometimes there are not enough. You can always create your own by adding some code in your theme’s...

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Search Add-on: Adding additional fields to the search form

The Search Add-on supports adding additional fields to the search form. These fields are created by adding a custom code snippet in your theme’s functions.php file. Example #1 – filter by...

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Search Add-on: Adding a description to the search results

You can add a short description text to the search results by adding the code below to your theme’s functions.php file. There is no standard field for adding a description, so you will probably...

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Adding a custom currency

The plugin includes the most popular currencies which are also supported by the payment providers we offer integrations with. If you need to add a new currency, you can do this by adding the following...

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Change the number of months in the month selector

The default display is 3 month in the past and 12 months in the future. You can change this by adding the filters below to your theme’s functions.php file: Change the return value to your desired...

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Search Add-on: Customize search results layout

You can use the wpbs_search_results_html filter to modify or create your own output for displaying search results. The filter modifies the HTML markup for each search result.

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Add offset to iCalendar feeds

While we do our best to make our iCalendar import work with all the major booking platforms (like Booking.com, AirBnB, Tripadvisor, Homeaway, etc), there are a few websites that export their feeds in...

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Change month selector to “Year Month”

By default, the date format in the month selector is “Month Year”. You can change it to “Year Month” by adding this snippet to your theme’s functions.php file.

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Include iCalendar events in export file

By default, iCalendar events are not included in the .ics export file. If syncing two feeds, this could create issues because the iCalendar events are created as an overlay on the calendar, overwriting...

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Dynamic date selection & month display

You can dynamically select a date or set the starting month and year of the calendar using query strings. Month display You can set the start month or year using the wpbs-start-month and wpbs-start-year...

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Adding code snippets to your theme's functions.php file

Theme Functions (functions.php) is the main file to add your custom code (in PHP language) to customize and/or change the behavior of the theme or any plugin. To add your code to functions.php go to:...

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Dynamic form field population

Using the dynamic population in WP Booking System, you can dynamically populate a field with a value, through a query string in the URL or by using a PHP filter. First, you have to enable the dynamic...

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