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PHP Manual :: bcsub



bcsqrt || GMP || BC Math Functions || PHP Manual

(PHP 4, PHP 5, PHP 7)

bcsubSubtract one arbitrary precision number from another

Description

string bcsub ( string $left_operand , string $right_operand [, int $scale = 0 ] )

Subtracts the right_operand from the left_operand.

Parameters

left_operand

The left operand, as a string.

right_operand

The right operand, as a string.

scale

This optional parameter is used to set the number of digits after the decimal place in the result. If omitted, it will default to the scale set globally with the bcscale() function, or fallback to 0 if this has not been set.

Return Values

The result of the subtraction, as a string.

Examples

Example #1 bcsub() example

<?php

$a 
'1.234';
$b '5';

echo 
bcsub($a$b);     // -3
echo bcsub($a$b4);  // -3.7660

?>

See Also

  • bcadd() - Add two arbitrary precision numbers



bcsqrt || GMP || BC Math Functions || PHP Manual
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