RegEx - How to Extract Price?

Question

How would I extract the dollar amount from the following string

\"some text will go here and more and more and then there will be some price $34.03 but that doesn\'t

Answer 1

What about this regexp: \$[0-9.,]+ or \$([0-9.,]+) to strip the $?

It's simple but it does pretty much what you want, it even catches things like this: $1,450.8934 or $14.343.

Of course the drawback it'd be that it'd catch $34.54.23 as well.

Or if you want to catch only two decimals: \$[0-9,]+\.[0-9]{2} it'd catch the $5.23 part of $5.234565.

You can use it with preg_match or preg_match_all.

Answer 2

Since you don't mention a specific regex engine, you might have to adjust this a bit:

/(\$\d+(\.\d+)?)/

Answer 3

I'm no regex-guru, but was able to whip up the following with RegExr.

/(\$[0-9]+(\.[0-9]{2})?)/

Matches $35.03 and $35. To accept formats like $35,000.52 you would need to include ,

/(\$[0-9,]+(\.[0-9]{2})?)/

This could likely be improved upon, but from my preliminary tests, it works just fine.

Answer 4

'/\$\d+(?:\.\d+)?/'

if(preg_match('/\$\d+(?:\.\d+)?/',$text,$matches)){
    echo $matches[0]; //which would be $34 or $34.03
}

Answer 5

I am currently working on a small function using regex to get price amount inside a String :

private static String getPrice(String input)
{
    String output = "";

    Pattern pattern = Pattern.compile("\\d{1,3}[,\\.]?(\\d{1,2})?");
    Matcher matcher = pattern.matcher(input);
    if (matcher.find())
    {
        output = matcher.group(0);
    }

    return output;
}

this seems to work with small price (0,00 to 999,99) and various currency :

$12.34 -> 12.34

$12,34 -> 12,34

$12.00 -> 12.00

$12 -> 12

12€ -> 12

12,11€ -> 12,11

12.999€ -> 12.99

12.9€ -> 12.9

£999.99€ -> 999.99

...