FormatCurrency in PHP A Complete Guide

FormatCurrency in PHP: A Complete Guide

In PHP programming, the ability to format currency is essential for financial applications. The focus keyword, “php formatcurrency,” refers to the function in PHP that formats numbers as currency strings. This function is important because it simplifies the process of formatting currency and ensures accuracy in financial calculations. The common function for formatting number as currency in PHP, money_format(), inserts the formatted number where there is a percentage sign in the main string.

Understanding FormatCurrency in PHP

PHP offers a built-in function called ‘FormatCurrency’ that returns a number formatted as a currency string. It is the ideal function for developers who want to format currency values in their applications. The ‘FormatCurrency’ function replaces the ‘%’ sign in the main string with the formatted number.

The ‘FormatCurrency’ function is an improvement over the ‘number_format()’ function. In PHP 7.4, the ‘number_format()’ function is deprecated, and you should use the ‘NumberFormatter::formatCurrency’ instead. The ‘FormatCurrency’ function is defined in systems with ‘strfmon()’ capacity, which can make formatting numbers more convenient and efficient.

Developers can use the ‘FormatCurrency’ function for various purposes. It can format prices, salaries, and other money-related values for displaying on a web page or use in calculations. However, the function should only be used to format currency values, and not for other numerical data such as percentages or decimal values.

The ‘FormatCurrency’ function also allows you to specify several parameters such as the currency symbol, grouping separators, and the number of decimal places. Developers can customize the format of the output string to suit their specific requirements.

The Syntax of FormatCurrency in PHP

FormatCurrency is a built-in function in PHP used for formatting a number as a currency string. This function is only available in systems with strfmon() capabilities. In PHP 7.4, the money_format() function is deprecated so it is recommended to use NumberFormatter::formatCurrency instead.

The syntax of FormatCurrency in PHP involves using a combination of a formatted string and a numeric variable. The formatted string contains a percentage sign (%) which is where the formatted number is inserted.

Here are some examples of the syntax for using FormatCurrency in PHP:

$amount = 1234.56; //USD currency format
$usd = “$”. number_format ($amount, 2, “.”, “,”); //outputs $1,234.56
$jpy = “¥”. number_format ($amount, 0, “.”, “,”); //outputs ¥1,235

It is important to correctly use the syntax for FormatCurrency in PHP to avoid errors. Using incorrect syntax can result in unexpected output or even break the code.

Formatting Currencies for Different Countries and Cultures

When developing a website or application that deals with transactions or currencies, it is important to consider the different formatting styles used in different countries and cultures. In PHP, the FormatCurrency function can be used to format currencies for different cultures.

For example, in the United States, the dollar sign ($) usually precedes the amount, while in Japan, the yen sign (¥) usually follows the amount. To format an amount in USD, you can use the following code:

$amount = 1234.56;
$usd = "$". number_format ($amount, 2, ".", ",");
echo $usd; // output: $1,234.56

To format an amount in JPY, you can use the following code:

$amount = 1234.56;
$jpy = number_format ($amount, 0, ".", ","). "¥";
echo $jpy; // output: 1,235¥

It’s important to note that currency formatting can vary not only by country, but also by region or language. For example, in Canada, both the dollar sign ($) and the French word for dollar (Dollar) are commonly used in currency formatting. To accurately format currencies for different regions, it’s important to understand the specific conventions used in each region.

Correctly formatting currencies for different countries and cultures is not only important for the accuracy of financial transactions, but also for cultural sensitivity and avoiding misunderstandings or confusion.

Best Practices for Using FormatCurrency in PHP

If you’re working with money in PHP, the FormatCurrency() function is likely to come in handy. However, there are best practices to follow to ensure that you’re using it correctly and optimizing performance.

Use NumberFormatter::formatCurrency Instead of money_format()

While the money_format() function used to be a popular choice for formatting currency in PHP, it has been deprecated since PHP 7.4. A better alternative is to use NumberFormatter::formatCurrency.

Manually Format the Number to Currency

One way to format a number to currency is by using the number_format() function. This function manually formats the number to a currency string. Here’s an example:


$amount = 1234.56;
$usd = “$”. number_format ($amount, 2, “.”, “,”);
$jpy = “¥”. number_format ($amount, 0, “.”, “,”);

Avoid Using money_format() on Windows Platforms

The money_format() function doesn’t work on Windows platforms. If you’re working on a Windows system, you’ll need to use an alternative method to format your currency.

Use Regular Expressions to Format Currency

Another way to format currency in PHP is through the use of regular expressions. Here’s an example:


$amount = 6543.21;
$regex = “/B(?=(d{3})+(?!d))/i”;
$usd = “$” . preg_replace($regex, “,”, $amount);

Set Locale Before Using FormatCurrency()

The FormatCurrency() function uses the system’s locale settings to determine the currency format. Therefore, it’s important to set the locale before using this function to ensure that the currency is formatted correctly.

Handle Errors Gracefully

It’s possible to encounter errors when using FormatCurrency(). To avoid crashes and other issues, it’s important to handle errors gracefully. One way to do this is by using try-catch blocks to catch any exceptions that may occur.

When working with money in PHP, it’s important to follow best practices to ensure that the currency is formatted correctly and to avoid errors. By using NumberFormatter::formatCurrency, manually formatting the number to currency, avoiding money_format() on Windows platforms, using regular expressions, setting the locale before using FormatCurrency(), and handling errors gracefully, you can use FormatCurrency() with confidence.

Real-World Examples of Using FormatCurrency in PHP

FormatCurrency is an important function in PHP for applications and websites that deal with financial transactions. Let’s take a look at some real-world examples of how FormatCurrency is used in PHP:

Example #1 – E-commerce Website

An e-commerce website that sells products internationally needs to have an accurate and consistent representation of prices for its users. One way to achieve this is by using the FormatCurrency function in PHP. By using this function, all products’ prices can be automatically formatted according to the user’s locale and currency preferences. This ensures that the prices displayed to the user are easily understandable and transparent, making the transaction process smoother and more trustworthy for the user.

Using FormatCurrency also helps the website owners to maintain consistency in the representation of prices across all categories and products, thus avoiding any confusion and minimizing errors in pricing.

Example #2 – Banking Application

A banking application that deals with multiple types of currencies can greatly benefit from FormatCurrency in PHP. By using this function, the application can accurately represent the balances and transactions of users in their preferred currency format. This not only ensures easy readability and understanding for the user but also helps maintain accuracy and avoid potential mistakes or miscalculations in transactions.

With FormatCurrency, the banking application can also ensure compliance with industry-standard currency formatting regulations, making the application more trustworthy and reliable for its users.

Example #3 – Accounting Software

Accounting software that deals with financial data on a large scale can use FormatCurrency to handle currency conversions and ensure accurate representation of financial data. By automating the currency formatting process using Php FormatCurrency, accounting software can easily handle multiple currencies, making it easier for companies working across different geographical regions with diverse currencies.

Using FormatCurrency also enables accounting software to provide easy-to-understand financial reporting and analysis for businesses, while also maintaining consistency and accuracy in financial statements.

However, it should be noted that FormatCurrency may not be a suitable solution for all financial applications, as it may not support all currencies and currency formatting preferences. In such cases, developers may need to explore alternative solutions to ensure accurate and consistent currency formatting.


Here are some frequently asked questions related to using FormatCurrency in PHP:

How do I change the currency symbol when using FormatCurrency in PHP?

To change the currency symbol when using FormatCurrency in PHP, you can specify the symbol in the format string. For example, to display the euro symbol, you can use the following code:

$amount = 1234.56;$formatted_currency = money_format('€%i', $amount);echo $formatted_currency;
This will output:€1,234.56

Can I use FormatCurrency in PHP for non-currency formats?

No, the FormatCurrency function in PHP is specifically designed for formatting numbers as currencies. However, there are other PHP functions that can be used to format numbers in other ways, such as number_format() and sprintf().


In conclusion, using FormatCurrency in PHP is an essential skill for any web developer who wants to handle currency values effectively. Number formatting options like number_format() and regular expressions are common ways to manually format currency values in PHP. However, the NumberFormatter::formatCurrency() function is the recommended way of formatting currency values, especially with the recent deprecation of the money_format() function in PHP 7.4. While using FormatCurrency can provide accurate and uniform currency representation, it is important to be aware of its limitations, such as its incompatibility with Windows platforms. Further learning and practice can help developers master FormatCurrency and use it effectively to enhance their website’s user experience.


To format numbers as a currency in PHP, there are several ways to achieve the desired result. One way is to use the built-in function number_format() which manually formats the number into currency. Another way is to use regular expressions to format the currency. Additionally, the NumberFormatter::formatCurrency function can also be used for this purpose, and is recommended over the deprecated money_format() function. It is important to note that the money_format() function may not work on Windows platforms.

For more information and examples, visit the following resources:

Being a web developer, writer, and blogger for five years, Jade has a keen interest in writing about programming, coding, and web development.
Posts created 491

Related Posts

Begin typing your search term above and press enter to search. Press ESC to cancel.

Back To Top