Bagaimana cara kerja string di php?

Literal string adalah notasi untuk mewakili nilai string dalam teks program komputer. Di PHP, string dapat dibuat dengan tanda kutip tunggal, tanda kutip ganda atau menggunakan sintaks heredoc atau nowdoc

In this code example, we create two strings and assign them to $a
and $b variables. We print them with the echo keyword.
The first string is created with the double quote delimiters, the second one
with single quotes.
PHP string heredoc
The heredoc preserves the line breaks and other whitespace [including
indentation] in the text. The heredoc is created with  echo "Towering\tinferno\n";
Towering        inferno

Tab horizontal menempatkan spasi di antara teks

In this code example, we create two strings and assign them to $a
and $b variables. We print them with the echo keyword.
The first string is created with the double quote delimiters, the second one
with single quotes.
PHP string heredoc
The heredoc preserves the line breaks and other whitespace [including
indentation] in the text. The heredoc is created with