How can one improve the performance of a full-text search query in PHP when searching through a large dataset?

When searching through a large dataset in PHP using full-text search queries, one way to improve performance is by utilizing indexes on the columns being searched. Indexes can help speed up the search process by allowing the database to quickly locate the relevant rows without having to scan the entire dataset. Additionally, optimizing the query itself by using appropriate SQL syntax and limiting the number of columns being searched can also help improve performance.

// Example of using indexes to improve full-text search query performance
// Assuming we have a table named 'products' with a column 'product_name' that we want to search through

// Create an index on the 'product_name' column
CREATE INDEX idx_product_name ON products (product_name);

// Perform a full-text search query with the indexed column
$searchTerm = "keyword";
$query = "SELECT * FROM products WHERE MATCH(product_name) AGAINST ('$searchTerm' IN BOOLEAN MODE)";