As seen in the first chapter, a string is a group of characters created by surrounding text in single or double quotes.
<?php
$firstname = 'Joey';
$lastname = "Johnson";
A double quoted string can interpret special characters starting
with a back slash to create formatting. The \n creates a newline
between the names and after them.
echo "Jacob\nJones\n";
Double quoted strings can also embed variables in the text. This code outputs “Cindy Smith”.
$firstname = 'Cindy';
echo "$firstname Smith\n";
Another feature of strings is the ability to combine them together. To combine two strings, use the period character in between them.
$firstname = 'Jenny';
$lastname = 'Madison';
$fullname = $firstname . $lastname;
echo $fullname;