ZEND PHP 5 Certification STUDY GUIDE

86 ” Strings And Patterns
This time, the output is “¥100,000.70”. Similarly, if we change our formatting to use
the i conversion character, money_format() will produce its output using the international
notation, for example:
setlocale(LC_MONETARY, "en_US");
echo money_format(’%.2i’, "100000.698");
setlocale(LC_MONETARY, "ja_JP");
echo money_format(’%.2i’, "100000.698");
The first example displays “USD 100,000.70”, while the second outputs “JPY
100,000.70”. As you can see, money_format() is a must for any international commerce
site that accepts multiple currencies, as it allows you to easily display amounts
in currencies that you are not familiar with.
There are two important things that you should keep in mind here. First, a call
to setlocale() affects the entire process inside which it is executed, rather than the
individual script. Thus, you should be careful to always reset the locale whenever
you need to perform a formatting operation, particularly if your application requires
the use of multiple locales, or is hosted alongside other applications that may.
In addition, you should keep in mind that the default rounding rules change from
locale to locale. For example, US currency values are regularly expressed as dollars
and cents, while Japanese currency values are represented as integers. Therefore, if
you don’t specify a decimal precision, the same value can yield very different localedependent
formatted strings:
setlocale(LC_MONETARY, "en_US");
echo money_format(’%i’, "100000.698");
setlocale(LC_MONETARY, "ja_JP");
echo money_format(’%i’, "100000.698");
Licensed to 482634 - Amber Barrow (itsadmin@deakin.edu.au)
The first example displays “USD 100,000.70”; however, the Japanese output is now
“JPY 100,001”—as you can see, this last value was rounded up to the next integer.