Config.php -

In PHP development, a config.php file is a central script used to store global settings, environment variables, and database credentials for a web application. Instead of hardcoding these values into every page, developers reference this single file to maintain security and ease of updates. Common Uses of config.php

Use require_once to include the file. This ensures the script stops if the config is missing and prevents it from being loaded multiple times, which would waste server resources. Common Real-World Examples Framework / Tool Config File Name Key Features WordPress wp-config.php config.php

Why this is better:

  • Feature flags / app constants

    Use .gitignore: If you are using version control like Git, ensure your actual config.php is listed in .gitignore so your private passwords aren't uploaded to public repositories. 2. Implementation Methods In PHP development, a config