What potential issue can arise when manually converting decimal points to commas in PHP?

When manually converting decimal points to commas in PHP, a potential issue that can arise is the confusion between the decimal point used in numbers and the comma used as a separator in some regions. To solve this issue, you can use the `number_format()` function in PHP, which allows you to format a number with grouped thousands and set the decimal and thousands separators. 

$number = 1234.56;
$formatted_number = number_format($number, 2, ',', '.');
echo $formatted_number; // Output: 1.234,56

Keywords

type casting number_format locale settings string manipulation floating point precision

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