Create a function that takes a mathematical expression in prefix notation as a string and evaluates the expression.

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter9: Completing The Basics
Section: Chapter Questions
Problem 7PP
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IN PHP
Create a function that takes a mathematical expression in prefix notation as a string and evaluates the expression.
Examples
prefix("+ 5 4") → 9
prefix("* 12 2") → 24
prefix("+ -10 10")
Transcribed Image Text:IN PHP Create a function that takes a mathematical expression in prefix notation as a string and evaluates the expression. Examples prefix("+ 5 4") → 9 prefix("* 12 2") → 24 prefix("+ -10 10")
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