learndash_purchase_invoice_pdf()
Function: Converts purchase invoice content to PDF.
@package: LearnDash / PDF
Source Files: includes/ld-convert-post-pdf.php
Function: Converts purchase invoice content to PDF.
Function: Initialize the admin user Coupons capabilities.
Function: Utility function to return the admin user Coupons capabilities.
Function: Checks currency code is a zero decimal currency.
Function: Gets the price formatted based on the LearnDash global currency configuration.
Function: Gets the LearnDash global currency code.
Function: Gets the LearnDash global currency symbol.
Function: Outputs the LearnDash global currency symbol.
Function: Send the course/group purchase invoice email
Function: Returns course enrollment url.
Function: Returns true if it’s a course post.
Function: Returns the title for the post
Function: Gets the user’s quiz attempts for the ld_profile shortcode/block
Function: Mark all course steps as complete for a user.
Function: Process user course progress changes.
Function: Displays alert message for LearnDash related Appearance->Widgets
Function: Builds the `[ld_infobar]` shortcode output.
Function: Builds the `[ld_navigation]` shortcode output.
Function: Builds the `[ld_quiz]` shortcode output.
Function: Builds the `[ld_materials]` shortcode output.