Most PHP tasks are designed to be run concurrently, that is, several instances of the same task can run simultaneously. For example, my home page should be displayed to all viewers, even if they’re trying to access it at the same time. Other tasks, however, should only be run one at a time. For instance, […]

I just redid the bread crumbs code on my site to handle breadcrumbs without horribly mangling links containing slashes the query string. Details below.