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PHP: BcMath\Number::add - Manual

(PHP 8 >= 8.4.0)

BcMath\Number::add — Adds an arbitrary precision number

Description

Adds $this and num.

Errors/Exceptions

This method throws a ValueError in the following cases:

  • num is string and not a well-formed BCMath numeric string
  • scale is outside the valid range

Examples

Example #1 BcMath\Number::add() example when scale is not specified

<?php
$number = new BcMath\Number('1.234');

$ret1 = $number->add(new BcMath\Number('2.34567'));
$ret2 = $number->add('-3.456');
$ret3 = $number->add(7);

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

The above example will output:

object(BcMath\Number)#1 (2) {
  ["value"]=>
  string(5) "1.234"
  ["scale"]=>
  int(3)
}
object(BcMath\Number)#3 (2) {
  ["value"]=>
  string(7) "3.57967"
  ["scale"]=>
  int(5)
}
object(BcMath\Number)#2 (2) {
  ["value"]=>
  string(6) "-2.222"
  ["scale"]=>
  int(3)
}
object(BcMath\Number)#4 (2) {
  ["value"]=>
  string(5) "8.234"
  ["scale"]=>
  int(3)
}

Example #2 BcMath\Number::add() example of explicitly specifying scale

<?php
$number = new BcMath\Number('1.234');

$ret1 = $number->add(new BcMath\Number('2.34567'), 1);
$ret2 = $number->add('-3.456', 10);
$ret3 = $number->add(7, 0);

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

The above example will output:

object(BcMath\Number)#1 (2) {
  ["value"]=>
  string(5) "1.234"
  ["scale"]=>
  int(3)
}
object(BcMath\Number)#3 (2) {
  ["value"]=>
  string(3) "3.5"
  ["scale"]=>
  int(1)
}
object(BcMath\Number)#2 (2) {
  ["value"]=>
  string(13) "-2.2220000000"
  ["scale"]=>
  int(10)
}
object(BcMath\Number)#4 (2) {
  ["value"]=>
  string(1) "8"
  ["scale"]=>
  int(0)
}

See Also

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