How do I format a number to a dollar amount in PHP

Question

How do you convert a number to a string showing dollars and cents?

eg:
123.45    => '$123.45'
123.456   => '$123.46'
123       => '$123.00'
.13       => '$0.13'
.1        => '$0.10'
0         => '$0.00'

Answer 1

In PHP and C++ you can use the printf() function

printf("$%01.2f", $money);

Answer 2

PHP also has money_format().

Here's an example:

echo money_format('$%i', 3.4); // echos '$3.40'

This function actually has tons of options, go to the documentation I linked to to see them.

Answer 3

In C# use the currency format specifier :C

string.Format("{0:C}", someValue);

Answer 4

If you just want something simple:

'$' . number_format($money, 2);

number_format()