What are some potential pitfalls of using outdated PHP functions like mysql_query?

Using outdated PHP functions like mysql_query can lead to security vulnerabilities and compatibility issues with newer versions of PHP. It is recommended to use modern alternatives like PDO or MySQLi to ensure better security and support for future PHP updates. 

// Using PDO to query the database
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');
$stmt = $pdo->query('SELECT * FROM mytable');

// Fetching results
while ($row = $stmt->fetch()) {
    // Process each row
}

Keywords

mysql_query outdated functions security vulnerabilities deprecated SQL injection

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