(PHP 8 >= 8.4.0)
BcMath\Number::divmod — Gets the quotient and modulus of an arbitrary precision number
Gets the quotient and remainder of dividing $this by num.
numscalenull, the BcMath\Number::scale of the calculation result will be set automatically.
Returns an indexed array where the first element is the quotient as a new BcMath\Number object and the second element is the remainder as a new BcMath\Number object.
The quotient is always an integer value, so BcMath\Number::scale of the quotient will
always be 0, regardless of whether explicitly specify scale.
If scale is explicitly specified, BcMath\Number::scale of the
remainder will be the specified value.
When the BcMath\Number::scale of the result's remainder object is automatically set,
the greater BcMath\Number::scale of the two numbers used for modulus operation is used.
That is, if the BcMath\Number::scales of two values are 2
and 5 respectively, the BcMath\Number::scale of the remainder
will be 5.
This method throws a ValueError in the following cases:
num is string and not a well-formed BCMath numeric stringscale is outside the valid range
This method throws a DivisionByZeroError exception if
num is 0.
示例 #1 BcMath\Number::divmod() example when scale is not specified
<?php
echo '8.3 / 2.22' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('8')->divmod(new BcMath\Number('2.22'));
var_dump($quot, $rem);
echo PHP_EOL . '8.3 / 8.3' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('8.3')->divmod('8.3');
var_dump($quot, $rem);
echo PHP_EOL . '10 / -3' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('10')->divmod(-3);
var_dump($quot, $rem);
?>以上示例会输出：
8.3 / 2.22
object(BcMath\Number)#3 (2) {
["value"]=>
string(1) "3"
["scale"]=>
int(0)
}
object(BcMath\Number)#4 (2) {
["value"]=>
string(4) "1.34"
["scale"]=>
int(2)
}
8.3 / 8.3
object(BcMath\Number)#2 (2) {
["value"]=>
string(1) "1"
["scale"]=>
int(0)
}
object(BcMath\Number)#5 (2) {
["value"]=>
string(3) "0.0"
["scale"]=>
int(1)
}
10 / -3
object(BcMath\Number)#3 (2) {
["value"]=>
string(2) "-3"
["scale"]=>
int(0)
}
object(BcMath\Number)#1 (2) {
["value"]=>
string(1) "1"
["scale"]=>
int(0)
}
示例 #2 BcMath\Number::divmod() example of explicitly specifying scale
<?php
echo '8.3 / 2.22' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('8')->divmod(new BcMath\Number('2.22'), 1);
var_dump($quot, $rem);
echo PHP_EOL . '8.3 / 8.3' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('8.3')->divmod('8.3', 4);
var_dump($quot, $rem);
echo PHP_EOL . '10 / -3' . PHP_EOL;
[$quot, $rem] = new BcMath\Number('10')->divmod(-3, 5);
var_dump($quot, $rem);
?>以上示例会输出：
8.3 / 2.22
object(BcMath\Number)#3 (2) {
["value"]=>
string(1) "3"
["scale"]=>
int(0)
}
object(BcMath\Number)#4 (2) {
["value"]=>
string(3) "1.3"
["scale"]=>
int(1)
}
8.3 / 8.3
object(BcMath\Number)#2 (2) {
["value"]=>
string(1) "1"
["scale"]=>
int(0)
}
object(BcMath\Number)#5 (2) {
["value"]=>
string(6) "0.0000"
["scale"]=>
int(4)
}
10 / -3
object(BcMath\Number)#3 (2) {
["value"]=>
string(2) "-3"
["scale"]=>
int(0)
}
object(BcMath\Number)#1 (2) {
["value"]=>
string(7) "1.00000"
["scale"]=>
int(5)
}