PHP bcsub function

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bcsub

(PHP 3, PHP 4, PHP 5)

Subtracts the right_operand from the
left_operand.

The left operand, as a string.

The right operand, as a string.

This optional parameter is used to set the number
of digits after the decimal place in the result. You can also set the global default scale
for all functions by using bcscale().

The result of the substraction, as a string.

Example 1. bcsub() example

 
$a = '1.234';
$b = '5';
 
echo bcsub($a, $b);     // -3
echo bcsub($a, $b, 4);  // -3.7660

See Also