template_preprocess(&$variables, $hook, $info)
Adds a default set of helper variables for preprocessors and templates.
This function is called for theme hooks implemented as templates only, not for theme hooks implemented as functions. This preprocess function is the first in the sequence of preprocessing functions that are called when preparing variables for a template.
See the Default theme implementations topic for details.
File
core/includes/theme.inc, line 1196 The theme system, which