Fix PHP CSV Import Script

My existing PHP-based importer should read a CSV and push the records into a MySQL table, yet syntax errors stop it from running correctly. It has worked in the past but some revisions were saved but not completed.

Here’s what I need done:
• Examine the current codebase, pinpoint and resolve every syntax error so the script runs without warnings or notices on PHP 7+.
• Rework the mapping logic so each CSV header lines up with its intended MySQL column; no hard-coded column positions, please—use header names or a clear configuration array.
• Review existing procedures to save and retrieve import formats.
• Keep the present database connection method or recommend required changes.
• Add concise in-line comments and a short README outlining the fixes and any configuration options.
• Prove it works by importing any sample CSV to a specified table and returning a screenshot or query output that shows the data in the correct columns and saved import formats.

That’s it—once the script imports flawlessly, the mapping matches and import formats can be saved and retrieved, the task is complete.