string number_format ( float
$number [, int $decimals = 0 ] )
string number_format ( float
範例與結果$number , int $decimals = 0 , string $dec_point = '.' , string $thousands_sep = ',' )<?php
$number = 1234.56;
// Englische Notation (Standard)$english_format_number = number_format($number);// 1,235
// Franzoesische Notation$nombre_format_francais = number_format($number, 2, ',', ' ');// 1 234,56
$number = 1234.5678;
// Englische Notation ohne Tausendergruppierung$english_format_number = number_format($number, 2, '.', '');// 1234.57
?>
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