Still on Drupal 7? Security support for Drupal 7 ended on 5 January 2025. Please visit our Drupal 7 End of Life resources page to review all of your options.Theme API overview
In Drupal 7 the whole page is built as an array and only gets rendered into HTML — or as an AJAX reply or whatever else the menu entry
Theme API
Drupal 7 will no longer be supported after January 5, 2025. Learn more and find resources for Drupal 7 sites
Documentation for the Drupal 7 core Theme API.
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