Definition: Index.php is an HTML file extension used to organize website content, often with a subdirectory structure for easier access by users. The word "index.php" originates from the Greek word "index," which means "root" or "base." In the context of website indexing and categorizing information on a web page, it refers to the main content directory where all pages are stored. The file is organized under the "index" subdirectory. This structure allows for easy access to specific sections of the site without having to navigate through multiple directories. The term "index.php~" refers to the subdirectory structure that's typically used within an HTML website, making it a key part of managing content on the server side. The extension helps organize and categorize information across different pages on your website.
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