PHP coding challenge
Calculating the area of a circle
⨠Your Task
Given a radius, calculate the area of a circle. Round the result to nearest integer.
āļø PHP PHP version: 8.1
š Press "Run" and check the result below.
Test cases
A circle with a radius of 3.5 should have an area of 38
A circle with a radius of 10 should have an area of 314
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PHP Fundamentals
A set of coding problems that cover the basic syntax and features of the programming language.
1. VariablesComplexity
2. ConstantsComplexity
3. FunctionsComplexity
4. OperatorsComplexity
5. Control structuresComplexity
6. ArraysComplexity
7. StringsComplexity
8. Classes and ObjectsComplexity
9. NamespacesComplexity
10. Regular expressionsComplexity
11. Error handlingComplexity
12. MathComplexity