HaircuttersCalculator

PHP class

Depends on paramaters like population of country HaircuttersCalculator will calculate approximate number of haircutters needed in this country.

Usage

Download the ZIP archive extract and include it in your program.

include 'path/to/class/Calculator.php';

Create an object and run calculate() method:

$HC = new HaircuttersCalculator\Calculator();
echo $HC->calculate();

If everything went well you should see an approximate number of haircutters (176,201) needed with default parameters:

Population: 50000000
Mans rate: 54.0
Time needed to shear man: 30
Time needed to shear woman: 60
How often the person shorn during the year: 12
Haircutters working days (in the year): 345.25
Haircutters working minutes per day: 432

You can set/change parameters in few ways:

// pass it on object creation
$HC = new HaircuttersCalculator\Calculator(50000,20);

// or even as array:
$HC = new HaircuttersCalculator\Calculator(array('population'=>20000));

// using setParameter() method:
$HC = new Calculator();
$HC->setParameter('population',50000001);

// using setParameter() method with array as argument:
$HC = new Calculator();
$HC->setParameter(array(
  'man_rate'=>54,
  'haircutters_working_days'=>10
));

Web UI

You can check working copy visiting next URL:

http://haircutters-calculator-webui.gopagoda.com

Or you can host files provided in ZIP archive and access index.php.

CLI

Also I provide an sample of CLI usage in file cli.php:

$: chmod +x cli.php
$: ./cli.php --population=20000

Input data:
Array
(
    [population] => 20000
    [man_rate] => 54
    [shear_time_man] => 30
    [shear_time_woman] => 60
    [shears_per_year] => 12
    [haircutters_working_days] => 345.25
    [haircutters_working_minutes] => 432
)
Result: 71 haircutters needed.

You can pass --help parameter to it to get some help:

$: ./cli.php --help

Usage:
./cli.php [--paramater1=value1 [--parameter2=value2 ... [--parameterN=valueN]]]
Allowed paramaters:
    --population=integer                  Default 50000000
    --man_rate=double                     Default 54
    --shear_time_man=integer              Default 30
    --shear_time_woman=integer            Default 60
    --shears_per_year=integer             Default 12
    --haircutters_working_days=double     Default 345.25
    --haircutters_working_minutes=integer Default 432

Tests

To run tests you need to use next PHPUnit command:

phpunit --bootstrap tests/BootstrapLoader.php tests/HaircuttersCalculator/CalculatorTest.php

If everithing went well there must be output like:

OK (12 tests, 23 assertions)

Documentation

You can read documentation of HaircuttersCalculator generated by phpDocumentor using this link.

License

HaircuttersCalculator by Arthur Halma is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Based on a work at https://github.com/aptik/HaircuttersCalculator.