Automating WordPress Installation, Updates, and Multisite Conversion with Composer and WP‑CLI

Managing a WordPress site often involves time‑consuming and error‑prone tasks such as initial installation, updating to the latest version, and converting a single site to a multisite network. This article demonstrates how to streamline these operations by installing WP‑CLI via Composer and using its wp core commands.

First, install WP‑CLI with Composer:

composer require wp-cli/wp-cli

Then use the wp core commands:

1. Download and Install WordPress

Download the core files (e.g., the Dutch locale) with:

wp core download --locale=nl_NL

After the download completes, run the install command, providing site URL, title, and admin credentials:

wp core install --url=example.com --title=Example --admin_user=supervisor --admin_password=strongpassword [email protected]

These commands automate the installation process and avoid manual file handling.

2. Update WordPress

Update to the latest version with a single command:

wp core update

To update to a specific version, add the --version flag:

wp core update --version=5.8

This method ensures a reliable and repeatable update workflow.

3. Convert to Multisite

Transform a single‑site installation into a multisite network using:

wp core multisite-convert --title="My Network" --base="/sites/"

The command creates the necessary multisite database tables and adds constants to wp-config.php , simplifying the conversion.

By combining Composer and WP‑CLI, developers and site administrators can efficiently manage WordPress installations, updates, and multisite conversions, reducing manual effort and the risk of errors.