What are common issues when using PHP for search functionality?

Common issues when using PHP for search functionality include inefficient search algorithms, slow database queries, and lack of proper sanitization of user input which can lead to SQL injection attacks. To solve these issues, consider implementing a more optimized search algorithm, optimizing database queries with indexes, and using prepared statements or parameterized queries to prevent SQL injection attacks. 

// Example of using prepared statements to prevent SQL injection
$searchTerm = $_GET['search'];

// Prepare the SQL query
$stmt = $pdo->prepare("SELECT * FROM products WHERE name LIKE :searchTerm");
$stmt->bindValue(':searchTerm', '%' . $searchTerm . '%');
$stmt->execute();

// Fetch results
$results = $stmt->fetchAll();

Keywords

SQL injection full-text search LIKE operator pagination relevance ranking

Related Questions