Preprocessing in Drupal -- the Most Basic Guide (Part 1)

Submitted by nick__admin on Wed, 09/07/2016 - 11:12

Preprocessing is one of the most fundamental concepts in Drupal theming, but until I did it the first time I could not make heads or tails of it. At its most basic level, a preprocessor is a function that allows you to inject custom variables into your Drupal entity at any point during the bootstrapping process.

What the heck does that mean?