Are there any specific security considerations to keep in mind when implementing a search feature in PHP?

When implementing a search feature in PHP, it is important to consider security measures to prevent SQL injection attacks. One way to do this is by using prepared statements with parameterized queries to sanitize user input and prevent malicious code from being executed. 

// Establish a database connection
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

// Sanitize user input
$searchTerm = $_GET['search'];
$searchTerm = htmlspecialchars($searchTerm);

// Prepare a statement with a parameterized query
$stmt = $pdo->prepare("SELECT * FROM mytable WHERE column LIKE :searchTerm");
$stmt->bindParam(':searchTerm', $searchTerm, PDO::PARAM_STR);
$stmt->execute();

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

Keywords

SQL injection cross-site scripting input validation prepared statements secure coding practices

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