How can the use of .= operator instead of = improve the concatenation of variables in PHP code embedded within HTML?

Using the .= operator instead of = in PHP code embedded within HTML allows for concatenation of variables without overwriting the existing value. This is particularly useful when you want to build a string dynamically by adding more content to it. By using .=, you can continuously append new data to the existing string without losing the previously added content. 

<?php
$name = "John";
$message = "Hello, ";
$message .= $name;
echo $message; // Output: Hello, John
?>

Keywords

PHP concatenation .= operator variables HTML.

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