The format specification consists of the following sequence:
optional field width
optional left precision
optional right precision
a required conversion character
Flags. One or more of the optional flags below can be used:
= followed by a (single byte)
f to be used as the numeric fill
character. The default fill character is space.
Disable the use of grouping characters (as defined by the current locale).
Specify the formatting style for positive and negative numbers.
+ is used, the locale's equivalent for
- will be used. If
( is used, negative amounts are enclosed in
parenthesis. If no specification is given, the default is
Suppress the currency symbol from the output string.
If present, it will make all fields left-justified (padded to the right), as opposed to the default which is for the fields to be right-justified (padded to the left).
A decimal digit string specifying a minimum field width. Field will
be right-justified unless the flag
- is used.
Default value is 0 (zero).
The maximum number of digits (
to the left of the decimal character (e.g. the decimal point). It is
used usually to keep formatted output aligned in the same columns,
using the fill character if the number of digits is less than
n. If the number of actual digits is
n, then this specification is
If grouping has not been suppressed using the
flag, grouping separators will be inserted before the fill
characters (if any) are added. Grouping separators will not be
applied to fill characters, even if the fill character is a digit.
To ensure alignment, any characters appearing before or after the number in the formatted output such as currency or sign symbols are padded as necessary with space characters to make their positive and negative formats an equal length.
Right precision .
A period followed by the number of digits
p) after the decimal character. If the
p is 0 (zero), the decimal
character and the digits to its right will be omitted. If no right
precision is included, the default will dictated by the current
local in use. The amount being formatted is rounded to the specified
number of digits prior to formatting.
Conversion characters .
The number is formatted according to the locale's international currency format (e.g. for the USA locale: USD 1,234.56).
The number is formatted according to the locale's national currency format (e.g. for the de_DE locale: DM1.234,56).
The number to be formatted.
Returns the formatted string. Characters before and after the formatting string will be returned unchanged.
LC_MONETARY category of the locale settings,
affects the behavior of this function. Use setlocale()
to set to the appropriate default locale before using this function.
We will use different locales and format specifications to illustrate the use of this function.
$number = 1234.56;
// let's print the international format for the en_US locale
echo money_format('%i', $number) . "\n";
// USD 1,234.56
// Italian national format with 2 decimals`
echo money_format('%.2n', $number) . "\n";
// L. 1.234,56
// Using a negative number
$number = -1234.5672;
// US national format, using () for negative numbers
// and 10 digits for left precision
echo money_format('%(#10n', $number) . "\n";
// ($ 1,234.57)
// Similar format as above, adding the use of 2 digits of right
// precision and '*' as a fill character
echo money_format('%=*(#10.2n', $number) . "\n";
// Let's justify to the left, with 14 positions of width, 8 digits of
// left precision, 2 of right precision, withouth grouping character
// and using the international format for the de_DE locale.
echo money_format('%=*^-14#8.2i', 1234.56) . "\n";
// DEM 1234,56****
// Let's add some blurb before and after the conversion specification
$fmt = 'The final value is %i (after a 10%% discount)';
echo money_format($fmt, 1234.56) . "\n";
// The final value is GBP 1,234.56 (after a 10% discount)