What potential pitfalls should be avoided when using MySQL functions in PHP, such as mysql_connect and mysql_query?

One potential pitfall to avoid when using MySQL functions in PHP is using deprecated functions like mysql_connect and mysql_query. These functions have been deprecated in newer versions of PHP and should be replaced with mysqli or PDO functions to ensure compatibility and security. It is important to update your code to use the newer functions to avoid any issues with your database connections and queries. 

// Using mysqli_connect to establish a database connection
$mysqli = mysqli_connect('localhost', 'username', 'password', 'database');

// Using mysqli_query to execute a query
$query = "SELECT * FROM table";
$result = mysqli_query($mysqli, $query);

// Loop through the results
while ($row = mysqli_fetch_assoc($result)) {
    // Process the data
}

// Close the connection
mysqli_close($mysqli);

Keywords

MySQL functions PHP mysql_connect mysql_query error handling

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