Why is it recommended to avoid using the mysql_db_query function in PHP and instead use mysql_select_db and mysql_query?

It is recommended to avoid using the mysql_db_query function in PHP because it is deprecated and has been removed in newer versions of PHP. Instead, it is better to use mysql_select_db to select the database and then use mysql_query to run the query. This ensures compatibility with newer PHP versions and follows best practices for database interactions.

<?php
// Connect to MySQL server
$conn = mysql_connect("localhost", "username", "password");

// Select the database
mysql_select_db("database_name", $conn);

// Run a query
$result = mysql_query("SELECT * FROM table_name");

// Process the query result
while ($row = mysql_fetch_assoc($result)) {
    // Do something with the data
}

// Close the connection
mysql_close($conn);
?>