What is the correct syntax for concatenation in PHP?

To concatenate strings in PHP, you can use the "." operator. This operator allows you to combine two or more strings together to create a single string. Make sure to include the "." operator between the strings you want to concatenate.

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