What potential issues can arise when using PHP to interact with a MySQL database?

One potential issue that can arise when using PHP to interact with a MySQL database is SQL injection attacks. To prevent this, it is important to use prepared statements with parameterized queries to sanitize user input and prevent malicious SQL code from being executed. 

// Using prepared statements to prevent SQL injection
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

MySQL PHP SQL injection error handling data validation

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