Are there any best practices for handling currency formatting in PHP applications?

When handling currency formatting in PHP applications, it is important to ensure that the currency is displayed correctly according to the user's locale. One best practice is to use the NumberFormatter class in PHP, which provides a convenient way to format numbers, including currencies, based on the user's locale settings. 

$amount = 1000.50;
$locale = 'en_US'; // Example locale, can be set dynamically based on user preferences

$fmt = new NumberFormatter($locale, NumberFormatter::CURRENCY);
echo $fmt->formatCurrency($amount, 'USD'); // Output: $1,000.50

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currency formatting PHP applications best practices handling libraries

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