PHP · December 19, 2023

Php Tip: Use number_format() to format a number with grouped thousands

Php Tip: Use number_format() to format a number with grouped thousands

When working with numbers in PHP, it is often necessary to format them in a way that is more readable and visually appealing. One common formatting requirement is to display large numbers with grouped thousands, using commas or periods as separators. In such cases, the number_format() function in PHP comes to the rescue.

What is number_format()?

The number_format() function is a built-in PHP function that allows you to format a number with grouped thousands. It takes a number as its first argument and returns a formatted string representation of that number.

The number_format() function accepts three additional optional arguments:

  • decimals: Specifies the number of decimal places to include in the formatted number. The default value is 0.
  • decimal_point: Specifies the character to use as the decimal point. The default value is a period (.).
  • thousands_separator: Specifies the character to use as the thousands separator. The default value is a comma (,).

Using number_format()

Let's take a look at some examples to understand how to use the number_format() function:

$number = 1234567.89;
$formatted_number = number_format($number);
echo $formatted_number;
// Output: 1,234,567

$number = 1234567.89;
$formatted_number = number_format($number, 2, '.', ',');
echo $formatted_number;
// Output: 1,234,567.89

$number = 1234567.89;
$formatted_number = number_format($number, 2, ',', '.');
echo $formatted_number;
// Output: 1.234.567,89

In the first example, we pass only the number to the number_format() function. It returns a formatted string with grouped thousands using commas as separators.

In the second example, we pass the number, the number of decimal places (2), the decimal point (.), and the thousands separator (,). This results in a formatted string with two decimal places and commas as separators.

In the third example, we pass the number, the number of decimal places (2), the decimal point (,), and the thousands separator (.). This results in a formatted string with two decimal places and periods as separators.

Conclusion

The number_format() function in PHP is a handy tool for formatting numbers with grouped thousands. It allows you to present large numbers in a more readable and visually appealing way. By using the optional arguments, you can customize the number of decimal places, the decimal point, and the thousands separator according to your specific requirements.

Next time you need to format a number with grouped thousands in PHP, remember to use the number_format() function to simplify the task and enhance the user experience.

Summary

In summary, the number_format() function in PHP is a powerful tool for formatting numbers with grouped thousands. It allows you to present large numbers in a more readable and visually appealing way. By using the optional arguments, you can customize the number of decimal places, the decimal point, and the thousands separator according to your specific requirements.

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