What are some common issues with using prepared statements in PHP and how can they be avoided?

One common issue with using prepared statements in PHP is not binding parameters correctly, which can lead to SQL injection vulnerabilities. To avoid this, always bind parameters using the appropriate data type and ensure they are properly sanitized. 

// Correct way to bind parameters in a prepared statement
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username, PDO::PARAM_STR);
$stmt->execute();

Keywords

SQL injection PDO bind parameters data validation error handling

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