How can SQL syntax errors be avoided when writing queries in PHP?

To avoid SQL syntax errors when writing queries in PHP, it is important to use prepared statements with parameterized queries. This helps prevent SQL injection attacks and ensures that the SQL syntax is correct. By binding parameters to placeholders in the query, the database engine handles the values safely, reducing the risk of errors. 

// Example of using prepared statements to avoid SQL syntax errors
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username, PDO::PARAM_STR);
$stmt->execute();
$results = $stmt->fetchAll();

foreach ($results as $row) {
    echo $row['username'] . '<br>';
}

Keywords

SQL injection prepared statements PDO mysqli error handling

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