In PHP 8.2, the `echo()` language construct works the same way as in previous versions, though it's technically not a function but a language construct. Here's how to use it with examples:PHP 8, PHP 8.1,PHP 8.2,PHP 8.3 and PHP 8.4.

Basic Usage

<?php
// Simple string output
echo("Hello, World!");
// Outputting variables
$name = "Alice";
echo("Hello, $name!");
// Multiple parameters (note: parentheses are optional)
echo "This ", "is ", "a ", "test.";
?>

Examples in PHP 8.2 Basic output

<?php
echo("Welcome to PHP 8.2!");
// Output: Welcome to PHP 8.2!
?>

Important Notes for PHP 8.2

1. `echo` is not actually a function, so you can use it with or without parentheses:

<?php
echo "No parentheses";
echo("With parentheses");
?>

2. In PHP 8.2, `echo` remains one of the most efficient ways to output data to the browser.
3. For complex output, consider using alternative approaches like heredoc syntax or output buffering for better readability.

Remember that while `echo()` with parentheses works, the parentheses are not required unless you're passing multiple parameters.