I’ve been using __FILE__ for years, but I never thought to look for its siblings. I feel as though I should have noticed these earlier; they’re clearly referenced in the docs for debug_backtrace(), after all.
PHP Magic Constants: __LINE__, __FILE__, __DIR__, __FUNCTION__, __CLASS__, __METHOD__, and __NAMESPACE__
WP 2.6 allows sites to move the wp-content directory around, so plugin developers like me can’t depend on them being in a predictable location. We can look to the WP_CONTENT_DIR and WP_PLUGIN_DIR constants for answers, but a better solution is likely to use the X_url() functions. The most useful of those is likely to be […]