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Consider the following table data and PHP code. What is the outcome?
Table data (table name "users" with primary key "id"):
PHP code (assume the PDO connection is correctly established):
$dsn = 'mysql:host=localhost;dbname=exam';
$user = 'username';
$pass = '********';
$pdo = new PDO($dsn, $user, $pass);
$cmd = "SELECT * FROM users WHERE id = :id";
$stmt = $pdo->prepare($cmd);
$id = 3;
$stmt->bindParam('id', $id);
$stmt->execute();
$stmt->bindColumn(3, $result);
$row = $stmt->fetch(PDO::FETCH_BOUND);
Which of the following superglobals does not necessarily contain data from the client?
Which of the following statements about anonymous functions in PHP are NOT true? (Choose 2)
Which sentence describes the following regular expression match?
preg_match('/^\d+(?:\.[0-9]+)?$/', $test);
