Compare floating-point numbers with optional precision.
composer require nickolasburr/floatcmp:^1.0use function floatcmp;
$a = 0.00528690;
$b = 0.00528;
if (floatcmp($a, $b, 5) === 0) {
/*
* $a and $b are equal at given scale precision.
*
* Unlike a floating-point arithmetic library,
* floatcmp() does not apply rounding to its
* arguments but instead takes a fixed-width
* scale approach like bccomp(). When bcmath
* is available, floatcmp() will use bccomp()
* for the float comparison.
*/
}