What is the best practice for retrieving a single data entry in PHP?

When retrieving a single data entry in PHP, the best practice is to use prepared statements to prevent SQL injection attacks and ensure data integrity. Prepared statements separate the SQL query from the data input, making it safer and more efficient to retrieve data from a database. 

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

// Prepare a SQL statement with a placeholder for the data entry ID
$stmt = $pdo->prepare('SELECT * FROM mytable WHERE id = :id');

// Bind the data entry ID to the placeholder
$stmt->bindParam(':id', $data_entry_id);

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

// Fetch the data entry
$data_entry = $stmt->fetch(PDO::FETCH_ASSOC);

// Use the retrieved data entry as needed
print_r($data_entry);

Keywords

PHP database SQL query fetch

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