Are there any potential pitfalls to be aware of when using the number_format function in PHP?

One potential pitfall to be aware of when using the number_format function in PHP is that it may not handle large numbers correctly due to floating-point precision issues. To solve this problem, you can use the BCMath extension in PHP to perform arbitrary precision arithmetic and format the number accordingly.

$number = '12345678901234567890.1234567890';
$formatted_number = number_format($number, 2); // Incorrect result due to floating-point precision issue

// Using BCMath extension to handle large numbers
$precision = 2;
$formatted_number = number_format(bcadd($number, '0', $precision), $precision); // Correctly formats the number
echo $formatted_number;