How can the PHP manual be effectively utilized to understand function parameters and return values, especially in the context of mysqli_query and mysqli_fetch_assoc functions?

To understand function parameters and return values in the context of mysqli_query and mysqli_fetch_assoc functions, one can refer to the PHP manual for detailed explanations and examples. The manual provides comprehensive documentation on each function, including the parameters they accept and the values they return. By studying the manual, developers can gain a better understanding of how to use these functions effectively in their code.

// Example code demonstrating the use of mysqli_query and mysqli_fetch_assoc functions
$conn = mysqli_connect("localhost", "username", "password", "database");

// Perform a query
$result = mysqli_query($conn, "SELECT * FROM users");

// Fetch associative array
while ($row = mysqli_fetch_assoc($result)) {
    // Process each row
    echo "User ID: " . $row['id'] . " - Name: " . $row['name'] . "<br>";
}

// Free result set
mysqli_free_result($result);

// Close connection
mysqli_close($conn);