Where should the "echo" statement be inserted in PHP code to display output?

To display output in PHP, you can use the "echo" statement. This statement is typically inserted within the PHP code where you want to output text or variables to the screen. You can echo a simple string or concatenate variables and strings to display more complex output. Example PHP code snippet:

<?php
// Define a variable
$message = "Hello, World!";

// Output the message using echo
echo $message;
?>