July 2011
Intermediate to advanced
1146 pages
32h 29m
English
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One of the fundamental changes in Drupal 7 is how the HTML appearing in the browser is assembled. For example, in previous Drupal versions, the content of a block was returned as an HTML string. Then, the theme_block() function put this HTML in a template together with the subject, returned a somewhat bigger HTML string, and concatenating several of these together yielded the HTML for one region.
In Drupal 7, on the other hand, the content of the block is returned as an array from the block callback. Then it gets put inside an array and so on. The end result is a gigantic, multi-dimensional ...
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