A WordPress install can run on PHP 7.4+ but 8.x is recommended for performance and security. The official Docker image uses PHP 8.3 in this dev rig.
Year: 2026
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The `wp-content/uploads/` directory mirrors the year/month of the upload date. Predictable URLs make external CDN integration straightforward.
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Image sizes are generated on upload according to the active theme’s add_image_size() registrations. Re-generation is needed when sizes change.
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Comments in WordPress have an extensive moderation pipeline. Akismet pre-filters spam; the manual queue catches the rest.
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The Site Health screen reports environment problems: outdated PHP, missing modules, scheduled cron failures, and more. It’s the first stop when debugging.
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Themes follow the same update flow as plugins. Child themes inherit from a parent and let you customize templates without losing changes on upgrade.
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Plugin updates ship via the WordPress.org plugin directory. The auto-updater can be turned on globally or per-plugin from the admin.
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WordPress multisite networks share a single codebase across many sites. Each site has its own database tables under a prefix; users can span multiple sites.
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The `_wp_attached_file` post meta links an attachment to its filesystem path. Media library URLs derive from the `wp_upload_dir()` function.
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Block themes (FSE) introduce site-wide template editing. Classic themes still dominate the install base; both coexist in 6.x.