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number_format

number_format

(PHP 4, PHP 5)

number_formatFormat a number with grouped thousands

说明

string number_format ( float $number [, int $decimals = 0 ] ) string number_format ( float $number , int $decimals = 0 , string $dec_point = '.' , string $thousands_sep = ',' )

This function accepts either one, two, or four parameters (not three):

If only one parameter is given, number will be formatted without decimals, but with a comma (",") between every group of thousands.

If two parameters are given, number will be formatted with decimals decimals with a dot (".") in front, and a comma (",") between every group of thousands.

If all four parameters are given, number will be formatted with decimals decimals, dec_point instead of a dot (".") before the decimals and thousands_sep instead of a comma (",") between every group of thousands.

返回值

A formatted version of number.

参数

number

The number being formatted.

decimals

Sets the number of decimal points.

dec_point

Sets the separator for the decimal point.

thousands_sep

Sets the thousands separator.

更新日志

版本 说明
5.4.0 This function now supports multiple bytes in dec_point and thousands_sep. Only the first byte of each separator was used in older versions.

范例

Example #1 number_format() Example

For instance, French notation usually use two decimals, comma (',') as decimal separator, and space (' ') as thousand separator. This is achieved with this line :

<?php

$number 
1234.56;

// english notation (default)
$english_format_number number_format($number);
// 1,235

// French notation
$nombre_format_francais number_format($number2','' ');
// 1 234,56

$number 1234.5678;

// english notation without thousands separator
$english_format_number number_format($number2'.''');
// 1234.57

?>

参见


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  • chr
  • chunk_split
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  • convert_uudecode
  • convert_uuencode
  • count_chars
  • crc32
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  • echo
  • explode
  • fprintf
  • get_html_translation_table
  • hebrev
  • hebrevc
  • hex2bin
  • htmlentities
  • htmlspecialchars
  • htmlspecialchars_decode
  • html_entity_decode
  • implode
  • join
  • levenshtein
  • localeconv
  • ltrim
  • md5
  • md5_file
  • metaphone
  • money_format
  • nl2br
  • nl_langinfo
  • number_format
  • ord
  • parse_str
  • print
  • printf
  • quoted_printable_decode
  • quoted_printable_encode
  • quotemeta
  • rtrim
  • setlocale
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  • similar_text
  • soundex
  • sprintf
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  • strcasecmp
  • strchr
  • strcmp
  • strcoll
  • strcspn
  • stripcslashes
  • stripos
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  • stristr
  • strlen
  • strnatcasecmp
  • strnatcmp
  • strncasecmp
  • strncmp
  • strpbrk
  • strpos
  • strrchr
  • strrev
  • strripos
  • strrpos
  • strspn
  • strstr
  • strtok
  • strtolower
  • strtoupper
  • strtr
  • str_getcsv
  • str_ireplace
  • str_pad
  • str_repeat
  • str_replace
  • str_rot13
  • str_shuffle
  • str_split
  • str_word_count
  • substr
  • substr_compare
  • substr_count
  • substr_replace
  • trim
  • ucfirst
  • ucwords
  • vfprintf
  • vprintf
  • vsprintf
  • wordwrap
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