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BcMath\Number::mod

PHP function Edit on GitHub ✎

(PHP 8 >= 8.4.0)

Gets the modulus of an arbitrary precision number

Description

BcMath\Number::mod(BcMath\Number|string|int $num, int|null $scale = null): BcMath\Number

Gets the remainder of dividing $this by num. Unless num is 0, the result has the same sign as $this.

Return Values

Returns the modulus as a new BcMath\Number object.

When the BcMath\Number::scale of the result object is automatically set, the greater BcMath\Number::scale of the two numbers used for modulus operation is used.

Errors/Exceptions

Examples

BcMath\Number::mod example when scale is not specified

php
<?php
$number = new BcMath\Number('8.3');

$ret1 = $number->mod(new BcMath\Number('2.22'));
$ret2 = $number->mod('8.3');
$ret3 = $number->mod(-5);

var_dump($number, $ret1, $ret2, $ret3);
?>

The above example will output:

output
object(BcMath\Number)#1 (2) {
  ["value"]=>
  string(3) "8.3"
  ["scale"]=>
  int(1)
}
object(BcMath\Number)#3 (2) {
  ["value"]=>
  string(4) "1.64"
  ["scale"]=>
  int(2)
}
object(BcMath\Number)#2 (2) {
  ["value"]=>
  string(3) "0.0"
  ["scale"]=>
  int(1)
}
object(BcMath\Number)#4 (2) {
  ["value"]=>
  string(3) "3.3"
  ["scale"]=>
  int(1)
}

BcMath\Number::mod example of explicitly specifying scale

php
<?php
$number = new BcMath\Number('8.3');

$ret1 = $number->mod(new BcMath\Number('2.22'), 1);
$ret2 = $number->mod('8.3', 3);
$ret3 = $number->mod(-5, 0);

var_dump($number, $ret1, $ret2, $ret3);
?>

The above example will output:

output
object(BcMath\Number)#1 (2) {
  ["value"]=>
  string(3) "8.3"
  ["scale"]=>
  int(1)
}
object(BcMath\Number)#3 (2) {
  ["value"]=>
  string(3) "1.6"
  ["scale"]=>
  int(1)
}
object(BcMath\Number)#2 (2) {
  ["value"]=>
  string(5) "0.000"
  ["scale"]=>
  int(3)
}
object(BcMath\Number)#4 (2) {
  ["value"]=>
  string(1) "3"
  ["scale"]=>
  int(0)
}

See Also

  • bcmod()
  • BcMath\Number::div
  • BcMath\Number::divmod
  • BcMath\Number::powmod

Source: reference/bc/bcmath/number/mod.xml · from the official PHP manual (php/doc-en)