how to reformat a number with commas

Question

I have a line of code that get a count of rows in my table and then display the count. In this case it display the number of downloads.

Right now the count is very s

Answer 1

If somebody is looking for the reverse of PHP's number_format function (by the title of this question), here is one:

/**
 * @param string $string
 * @param int $decimals
 * @param string $dec_point
 * @param string $thousands_sep
 *
 * @throws InvalidArgumentException
 * @return float
 */
function number_from_format($string, $decimals = 0, $dec_point = '.', $thousands_sep = ',') {
    $buffer = $string = (string) $string;
    $buffer = strtr($buffer, array($thousands_sep => '', $dec_point => '.'));
    $float = (float) $buffer;
    $test = number_format($float, $decimals, $dec_point, $thousands_sep);
    if ($test !== $string) {
        throw new InvalidArgumentException(sprintf('Unable to parse float from "%s" as number "%s".', $string, $test));
    }
    return $float;
}

Usage Example:

var_dump(number_from_format('1,200.00', 2)); # double(1200)