What are the common errors encountered when using PDO Prepared Statements in PHP?

One common error encountered when using PDO Prepared Statements in PHP is not binding parameters correctly, which can lead to SQL injection vulnerabilities. To solve this issue, make sure to use placeholders in the SQL query and bind the parameters using the `bindParam()` method. 

// Incorrect way of binding parameters
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->execute(array(':username' => $username));

// Correct way of binding parameters
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

PDO Prepared Statements Errors PHP SQL Injection

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