"To begin with, the PHP interpreter must be told which documents to handle - all documents, just those from certain subdirectories or only those with the extension .php. The document content could be HTML with embedded PHP scripts or only a PHP script."

"... Before we look at other ways to tag PHP scripts, let's explain what this document is meant to do. When a Web browser requests this document from a PHP-enabled Web server, the PHP interpreter scans the content for PHP tags. When a PHP tag is found, the script is read and interpreted. Theoutput of the script, usually a stream of text, dynamically replaces the script in the document (the original document still exists).

Complete Story

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