PHP: How to get $ to print using echo

Question

I'm very new to PHP and having a hard time finding this answer as $ denotes a variable in PHP. I'm trying to echo a total for items, such as:

echo "Your total is ${$total}";

The problems is the $ in front causes it to do nothing. I tried doing '$' but it prints the ' ' around the $. How do I get the $ to print in front of the variable?

Answer 1

Just use single quotes.

echo 'Your total is $' . $total;

Check this article for more information regarding the differences between single and double quotes in PHP.

http://v1.jeroenmulder.com/weblog/2005/04/php_single_and_double_quotes.php

Answer 2

如果使用双引号（“），则必须转义$字符：

echo "Your total is \${$total}";

Answer 3

最后但并非最不重要的：

printf('Your total is $%.2f', $total);

Answer 4

You need to escape the dollar sign: echo "\\$"; .

Answer 5

echo "Your total is $" . $total;

You don't have to use variable parsing in every possible situation. Very often it is much easier (both to write and to understand) when simply writing as a string concatenation..