bccomp
Description
Syntax
bccomp(
string $num1,
string $num2,
?int $scale = null
): intParameters
num1
The left operand, as a string.
num2
The right operand, as a string.
scale
Sets the number of digits after the decimal place which will be used in the comparison.
Return
Returns 0 if the two operands are equal, 1 if the num1 is larger than the num2, -1 otherwise.
Examples
1 · num1 = num2
<? $num1 = '1'; $num2 = '1'; $return = bccomp($num1, $num2); echo $return; ?>
0
2 · num1 < num2
<? $num1 = '1'; $num2 = '2'; $return = bccomp($num1, $num2); echo $return; ?>
-1
3 · num1 > num2
<? $num1 = '1'; $num2 = '0'; $return = bccomp($num1, $num2); echo $return; ?>
1
4 · scale · num1 = num2
<? $num1 = '1'; $num2 = '1.000001'; $scale = 5; $return = bccomp($num1, $num2, $scale); echo $return; ?>
0
5 · scale · num1 < num2
<? $num1 = '1'; $num2 = '1.000001'; $scale = 6; $return = bccomp($num1, $num2, $scale); echo $return; ?>
-1
6 · scale · num1 > num2
<? $num1 = '1.000001'; $num2 = '1'; $scale = 6; $return = bccomp($num1, $num2, $scale); echo $return; ?>
1
