What is the correct syntax for concatenating strings in PHP compared to Java?

In PHP, strings can be concatenated using the `.` operator, while in Java, strings are concatenated using the `+` operator. This means that if you are used to concatenating strings in Java using `+`, you will need to switch to using `.` when working with PHP. Remember to include the `.` operator between the strings you want to concatenate in PHP. PHP code snippet:

$string1 = "Hello";
$string2 = "World";
$concatenatedString = $string1 . " " . $string2;
echo $concatenatedString;