(PHP 4 >= 4.2.0, PHP 5, PHP 7)
fmod — 锟斤拷锟截筹拷锟斤拷锟侥革拷锟斤拷锟斤拷锟斤拷锟斤拷
$x
, float $y
) : float
锟斤拷锟截憋拷锟斤拷锟斤拷锟斤拷x锟斤拷锟斤拷锟皆筹拷锟斤拷锟斤拷y锟斤拷锟斤拷锟矫的革拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷r锟斤拷锟侥讹拷锟斤拷锟角ｏ拷x
= i * y + r锟斤拷锟斤拷锟斤拷 i 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� y
锟角凤拷锟斤拷值锟斤拷锟斤拷 r 锟斤拷
x 锟侥凤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷值小锟斤拷
y锟斤拷
x锟斤拷锟斤拷锟斤拷
y锟斤拷锟斤拷
x/y锟侥革拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
Example #1 fmod() 锟斤拷使锟斤拷
<?php
$x = 5.7;
$y = 1.3;
$r = fmod($x, $y);
// $r equals 0.5, because 4 * 1.3 + 0.5 = 5.7
?>