How can the use of LIKE and NOT be optimized in PHP queries to avoid errors or unexpected results?
When using LIKE and NOT in PHP queries, it's important to properly escape special characters and user input to prevent SQL injection attacks and unexpected results. One way to optimize the use of LIKE and NOT is to use prepared statements with placeholders for user input. This ensures that the input is treated as data rather than executable SQL code.
// Example of using prepared statements with LIKE and NOT in PHP queries
$searchTerm = "%example%";
$sql = "SELECT * FROM table WHERE column LIKE ?";
$stmt = $pdo->prepare($sql);
$stmt->execute([$searchTerm]);
$results = $stmt->fetchAll();