How can concatenation be used effectively in PHP to avoid quote-related problems?

When concatenating strings in PHP, it is important to use single quotes for literal strings to avoid quote-related problems. This ensures that variables within the string are not interpreted as part of the string itself. By using single quotes for literal strings and concatenating variables with the dot (.) operator, you can effectively avoid quote-related issues in PHP.

$name = 'John';
$message = 'Hello, ' . $name . '!'; // Using single quotes for literal strings and concatenating variables
echo $message;