Worksheet hook example

Worksheet.php

<?php

class Worksheet {
   /**
     * Holds the worksheet title.
     * @var string
     */
    private $title;

    // Registers the filter hooks.
    public function __construct(string $title)
    {
        // Set the title to the inner variable.
        $this->title = $title;
        
        // Register hook for form 3.
        add_filter('gfexcel_renderer_worksheet_title_3', [$this, 'change_title'], 10, 2);
    }
    
     /**
     * Method to listen to the worksheet title hook.
     * @param string $current_title The current title.
     * @param array $form The form object.
     * @return string The new worksheet title. Will be capped off at 31 characters.
     */
    public function change_title(string $current_title, array $form)
    {
        // You can also use the content of $form to assert what form you are currently on.
      
        return $this->title; // return the new title.
    }
}

// Trigger the class.
new Worksheet('Title');