String concatenation in PHP

Question

Is it possible to send some text message with an echo?

I\'m looking for something like: if($xml) echo $xml+\"hello world;

This is my PHP:

Answer 1

Use . instead of + to concatenate in PHP.

if($xml) { echo $xml . "hello world"; }

Answer 2

You can use .= to append a string to a variable:

$xml .= 'Hello World';

If you just want to echo $xml followed by "Hello World", why not:

if ($xml) {
  echo $xml;
  echo 'Hello World';
}