PHP Library for Basic Arithmetic on Fractions

This is an interface to the fraction arithmetic library Matt Johnson wrote for PHP. You can test the class below, or view the PHP source.

Fraction strings must be inputted in any of the following formats:

• 1/2
• 2/1
• -1/2
• 1 1/2
• -1 1/2
• 1
• -1

Please email me if you find a bug in the script.