How can the issue of context switching be addressed when writing SQL queries in PHP?

The issue of context switching when writing SQL queries in PHP can be addressed by using prepared statements. Prepared statements separate the SQL query from the data being passed into it, preventing SQL injection attacks and reducing the need for context switching. This can improve code readability, maintainability, and security. 

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

// Prepare a SQL statement
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");

// Bind parameters
$username = "john_doe";
$stmt->bindParam(':username', $username);

// Execute the statement
$stmt->execute();

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

// Loop through the results
foreach ($results as $row) {
    echo $row['username'] . "<br>";
}

Keywords

context switching SQL queries PHP performance optimization database connectivity

Related Questions