Exact results
Values are stored and calculated as decimal strings, so 0.1 plus 0.2 equals 0.3.
Decimal ObjectExact decimal arithmetic for PHP
An immutable value object on top of bcmath. Uses bcmath, no float rounding error.
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Immutable
Every operation returns a new object. A value you passed around cannot change behind your back.
Keeps your scale
Trailing zeros are kept until you trim them. 19.90 stays 19.90.
Readable API
add(), subtract(), greaterThan(), isZero(). No abbreviations to look up.
Any size
Works with numbers far beyond the integer and float range of PHP.
Framework integrations
Use it as the decimal column type in the CakePHP ORM through the cakephp-decimal plugin.