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<?php |
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|
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namespace TablePress\PhpOffice\PhpSpreadsheet\Calculation\Engineering; |
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|
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use TablePress\PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled; |
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use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Exception; |
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use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError; |
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|
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class ConvertUOM |
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{ |
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use ArrayEnabled; |
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|
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public const CATEGORY_WEIGHT_AND_MASS = 'Weight and Mass'; |
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public const CATEGORY_DISTANCE = 'Distance'; |
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public const CATEGORY_TIME = 'Time'; |
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public const CATEGORY_PRESSURE = 'Pressure'; |
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public const CATEGORY_FORCE = 'Force'; |
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public const CATEGORY_ENERGY = 'Energy'; |
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public const CATEGORY_POWER = 'Power'; |
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public const CATEGORY_MAGNETISM = 'Magnetism'; |
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public const CATEGORY_TEMPERATURE = 'Temperature'; |
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public const CATEGORY_VOLUME = 'Volume and Liquid Measure'; |
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public const CATEGORY_AREA = 'Area'; |
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public const CATEGORY_INFORMATION = 'Information'; |
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public const CATEGORY_SPEED = 'Speed'; |
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|
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/** |
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* Details of the Units of measure that can be used in CONVERTUOM(). |
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* |
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* @var array<string, array{Group: string, UnitName: string, AllowPrefix: bool}> |
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*/ |
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private static array $conversionUnits = [ |
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// Weight and Mass |
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'g' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Gram', 'AllowPrefix' => true], |
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'sg' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Slug', 'AllowPrefix' => false], |
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'lbm' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Pound mass (avoirdupois)', 'AllowPrefix' => false], |
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'u' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'U (atomic mass unit)', 'AllowPrefix' => true], |
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'ozm' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Ounce mass (avoirdupois)', 'AllowPrefix' => false], |
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'grain' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Grain', 'AllowPrefix' => false], |
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'cwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'U.S. (short) hundredweight', 'AllowPrefix' => false], |
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'shweight' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'U.S. (short) hundredweight', 'AllowPrefix' => false], |
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'uk_cwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial hundredweight', 'AllowPrefix' => false], |
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'lcwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial hundredweight', 'AllowPrefix' => false], |
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'hweight' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial hundredweight', 'AllowPrefix' => false], |
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'stone' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Stone', 'AllowPrefix' => false], |
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'ton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Ton', 'AllowPrefix' => false], |
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'uk_ton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial ton', 'AllowPrefix' => false], |
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'LTON' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial ton', 'AllowPrefix' => false], |
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'brton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'UnitName' => 'Imperial ton', 'AllowPrefix' => false], |
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// Distance |
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'm' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Meter', 'AllowPrefix' => true], |
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'mi' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Statute mile', 'AllowPrefix' => false], |
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'Nmi' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Nautical mile', 'AllowPrefix' => false], |
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'in' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Inch', 'AllowPrefix' => false], |
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'ft' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Foot', 'AllowPrefix' => false], |
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'yd' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Yard', 'AllowPrefix' => false], |
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'ang' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Angstrom', 'AllowPrefix' => true], |
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'ell' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Ell', 'AllowPrefix' => false], |
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'ly' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Light Year', 'AllowPrefix' => false], |
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'parsec' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Parsec', 'AllowPrefix' => false], |
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'pc' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Parsec', 'AllowPrefix' => false], |
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'Pica' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Pica (1/72 in)', 'AllowPrefix' => false], |
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'Picapt' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Pica (1/72 in)', 'AllowPrefix' => false], |
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'pica' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'Pica (1/6 in)', 'AllowPrefix' => false], |
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'survey_mi' => ['Group' => self::CATEGORY_DISTANCE, 'UnitName' => 'U.S survey mile (statute mile)', 'AllowPrefix' => false], |
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// Time |
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'yr' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Year', 'AllowPrefix' => false], |
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'day' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Day', 'AllowPrefix' => false], |
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'd' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Day', 'AllowPrefix' => false], |
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'hr' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Hour', 'AllowPrefix' => false], |
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'mn' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Minute', 'AllowPrefix' => false], |
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'min' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Minute', 'AllowPrefix' => false], |
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'sec' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Second', 'AllowPrefix' => true], |
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's' => ['Group' => self::CATEGORY_TIME, 'UnitName' => 'Second', 'AllowPrefix' => true], |
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// Pressure |
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'Pa' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'Pascal', 'AllowPrefix' => true], |
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'p' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'Pascal', 'AllowPrefix' => true], |
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'atm' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'Atmosphere', 'AllowPrefix' => true], |
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'at' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'Atmosphere', 'AllowPrefix' => true], |
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'mmHg' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'mm of Mercury', 'AllowPrefix' => true], |
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'psi' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'PSI', 'AllowPrefix' => true], |
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'Torr' => ['Group' => self::CATEGORY_PRESSURE, 'UnitName' => 'Torr', 'AllowPrefix' => true], |
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// Force |
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'N' => ['Group' => self::CATEGORY_FORCE, 'UnitName' => 'Newton', 'AllowPrefix' => true], |
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'dyn' => ['Group' => self::CATEGORY_FORCE, 'UnitName' => 'Dyne', 'AllowPrefix' => true], |
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'dy' => ['Group' => self::CATEGORY_FORCE, 'UnitName' => 'Dyne', 'AllowPrefix' => true], |
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'lbf' => ['Group' => self::CATEGORY_FORCE, 'UnitName' => 'Pound force', 'AllowPrefix' => false], |
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'pond' => ['Group' => self::CATEGORY_FORCE, 'UnitName' => 'Pond', 'AllowPrefix' => true], |
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// Energy |
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'J' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Joule', 'AllowPrefix' => true], |
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'e' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Erg', 'AllowPrefix' => true], |
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'c' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Thermodynamic calorie', 'AllowPrefix' => true], |
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'cal' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'IT calorie', 'AllowPrefix' => true], |
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'eV' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Electron volt', 'AllowPrefix' => true], |
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'ev' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Electron volt', 'AllowPrefix' => true], |
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'HPh' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Horsepower-hour', 'AllowPrefix' => false], |
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'hh' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Horsepower-hour', 'AllowPrefix' => false], |
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'Wh' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Watt-hour', 'AllowPrefix' => true], |
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'wh' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Watt-hour', 'AllowPrefix' => true], |
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'flb' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'Foot-pound', 'AllowPrefix' => false], |
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'BTU' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'BTU', 'AllowPrefix' => false], |
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'btu' => ['Group' => self::CATEGORY_ENERGY, 'UnitName' => 'BTU', 'AllowPrefix' => false], |
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// Power |
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'HP' => ['Group' => self::CATEGORY_POWER, 'UnitName' => 'Horsepower', 'AllowPrefix' => false], |
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'h' => ['Group' => self::CATEGORY_POWER, 'UnitName' => 'Horsepower', 'AllowPrefix' => false], |
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'W' => ['Group' => self::CATEGORY_POWER, 'UnitName' => 'Watt', 'AllowPrefix' => true], |
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'w' => ['Group' => self::CATEGORY_POWER, 'UnitName' => 'Watt', 'AllowPrefix' => true], |
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'PS' => ['Group' => self::CATEGORY_POWER, 'UnitName' => 'Pferdestärke', 'AllowPrefix' => false], |
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// Magnetism |
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'T' => ['Group' => self::CATEGORY_MAGNETISM, 'UnitName' => 'Tesla', 'AllowPrefix' => true], |
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'ga' => ['Group' => self::CATEGORY_MAGNETISM, 'UnitName' => 'Gauss', 'AllowPrefix' => true], |
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// Temperature |
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'C' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Celsius', 'AllowPrefix' => false], |
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'cel' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Celsius', 'AllowPrefix' => false], |
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'F' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Fahrenheit', 'AllowPrefix' => false], |
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'fah' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Fahrenheit', 'AllowPrefix' => false], |
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'K' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Kelvin', 'AllowPrefix' => false], |
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'kel' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Kelvin', 'AllowPrefix' => false], |
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'Rank' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Rankine', 'AllowPrefix' => false], |
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'Reau' => ['Group' => self::CATEGORY_TEMPERATURE, 'UnitName' => 'Degrees Réaumur', 'AllowPrefix' => false], |
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// Volume |
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'l' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Litre', 'AllowPrefix' => true], |
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'L' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Litre', 'AllowPrefix' => true], |
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'lt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Litre', 'AllowPrefix' => true], |
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'tsp' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Teaspoon', 'AllowPrefix' => false], |
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'tspm' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Modern Teaspoon', 'AllowPrefix' => false], |
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'tbs' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Tablespoon', 'AllowPrefix' => false], |
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'oz' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Fluid Ounce', 'AllowPrefix' => false], |
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'cup' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cup', 'AllowPrefix' => false], |
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'pt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'U.S. Pint', 'AllowPrefix' => false], |
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'us_pt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'U.S. Pint', 'AllowPrefix' => false], |
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'uk_pt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'U.K. Pint', 'AllowPrefix' => false], |
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'qt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Quart', 'AllowPrefix' => false], |
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'uk_qt' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Imperial Quart (UK)', 'AllowPrefix' => false], |
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'gal' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Gallon', 'AllowPrefix' => false], |
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'uk_gal' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Imperial Gallon (UK)', 'AllowPrefix' => false], |
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'ang3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Angstrom', 'AllowPrefix' => true], |
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'ang^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Angstrom', 'AllowPrefix' => true], |
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'barrel' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'US Oil Barrel', 'AllowPrefix' => false], |
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'bushel' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'US Bushel', 'AllowPrefix' => false], |
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'in3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Inch', 'AllowPrefix' => false], |
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'in^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Inch', 'AllowPrefix' => false], |
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'ft3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Foot', 'AllowPrefix' => false], |
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'ft^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Foot', 'AllowPrefix' => false], |
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'ly3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Light Year', 'AllowPrefix' => false], |
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'ly^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Light Year', 'AllowPrefix' => false], |
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'm3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Meter', 'AllowPrefix' => true], |
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'm^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Meter', 'AllowPrefix' => true], |
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'mi3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Mile', 'AllowPrefix' => false], |
| 150 |
'mi^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Mile', 'AllowPrefix' => false], |
| 151 |
'yd3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Yard', 'AllowPrefix' => false], |
| 152 |
'yd^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Yard', 'AllowPrefix' => false], |
| 153 |
'Nmi3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Nautical Mile', 'AllowPrefix' => false], |
| 154 |
'Nmi^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Nautical Mile', 'AllowPrefix' => false], |
| 155 |
'Pica3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Pica', 'AllowPrefix' => false], |
| 156 |
'Pica^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Pica', 'AllowPrefix' => false], |
| 157 |
'Picapt3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Pica', 'AllowPrefix' => false], |
| 158 |
'Picapt^3' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Cubic Pica', 'AllowPrefix' => false], |
| 159 |
'GRT' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Gross Registered Ton', 'AllowPrefix' => false], |
| 160 |
'regton' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Gross Registered Ton', 'AllowPrefix' => false], |
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'MTON' => ['Group' => self::CATEGORY_VOLUME, 'UnitName' => 'Measurement Ton (Freight Ton)', 'AllowPrefix' => false], |
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// Area |
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'ha' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Hectare', 'AllowPrefix' => true], |
| 164 |
'uk_acre' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'International Acre', 'AllowPrefix' => false], |
| 165 |
'us_acre' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'US Survey/Statute Acre', 'AllowPrefix' => false], |
| 166 |
'ang2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Angstrom', 'AllowPrefix' => true], |
| 167 |
'ang^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Angstrom', 'AllowPrefix' => true], |
| 168 |
'ar' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Are', 'AllowPrefix' => true], |
| 169 |
'ft2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Feet', 'AllowPrefix' => false], |
| 170 |
'ft^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Feet', 'AllowPrefix' => false], |
| 171 |
'in2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Inches', 'AllowPrefix' => false], |
| 172 |
'in^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Inches', 'AllowPrefix' => false], |
| 173 |
'ly2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Light Years', 'AllowPrefix' => false], |
| 174 |
'ly^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Light Years', 'AllowPrefix' => false], |
| 175 |
'm2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Meters', 'AllowPrefix' => true], |
| 176 |
'm^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Meters', 'AllowPrefix' => true], |
| 177 |
'Morgen' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Morgen', 'AllowPrefix' => false], |
| 178 |
'mi2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Miles', 'AllowPrefix' => false], |
| 179 |
'mi^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Miles', 'AllowPrefix' => false], |
| 180 |
'Nmi2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Nautical Miles', 'AllowPrefix' => false], |
| 181 |
'Nmi^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Nautical Miles', 'AllowPrefix' => false], |
| 182 |
'Pica2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Pica', 'AllowPrefix' => false], |
| 183 |
'Pica^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Pica', 'AllowPrefix' => false], |
| 184 |
'Picapt2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Pica', 'AllowPrefix' => false], |
| 185 |
'Picapt^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Pica', 'AllowPrefix' => false], |
| 186 |
'yd2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Yards', 'AllowPrefix' => false], |
| 187 |
'yd^2' => ['Group' => self::CATEGORY_AREA, 'UnitName' => 'Square Yards', 'AllowPrefix' => false], |
| 188 |
// Information |
| 189 |
'byte' => ['Group' => self::CATEGORY_INFORMATION, 'UnitName' => 'Byte', 'AllowPrefix' => true], |
| 190 |
'bit' => ['Group' => self::CATEGORY_INFORMATION, 'UnitName' => 'Bit', 'AllowPrefix' => true], |
| 191 |
// Speed |
| 192 |
'm/s' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Meters per second', 'AllowPrefix' => true], |
| 193 |
'm/sec' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Meters per second', 'AllowPrefix' => true], |
| 194 |
'm/h' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Meters per hour', 'AllowPrefix' => true], |
| 195 |
'm/hr' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Meters per hour', 'AllowPrefix' => true], |
| 196 |
'mph' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Miles per hour', 'AllowPrefix' => false], |
| 197 |
'admkn' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Admiralty Knot', 'AllowPrefix' => false], |
| 198 |
'kn' => ['Group' => self::CATEGORY_SPEED, 'UnitName' => 'Knot', 'AllowPrefix' => false], |
| 199 |
]; |
| 200 |
|
| 201 |
/** |
| 202 |
* Details of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). |
| 203 |
* |
| 204 |
* @var array<string, array{multiplier: float, name: string}> |
| 205 |
*/ |
| 206 |
private static array $conversionMultipliers = [ |
| 207 |
'Y' => ['multiplier' => 1E24, 'name' => 'yotta'], |
| 208 |
'Z' => ['multiplier' => 1E21, 'name' => 'zetta'], |
| 209 |
'E' => ['multiplier' => 1E18, 'name' => 'exa'], |
| 210 |
'P' => ['multiplier' => 1E15, 'name' => 'peta'], |
| 211 |
'T' => ['multiplier' => 1E12, 'name' => 'tera'], |
| 212 |
'G' => ['multiplier' => 1E9, 'name' => 'giga'], |
| 213 |
'M' => ['multiplier' => 1E6, 'name' => 'mega'], |
| 214 |
'k' => ['multiplier' => 1E3, 'name' => 'kilo'], |
| 215 |
'h' => ['multiplier' => 1E2, 'name' => 'hecto'], |
| 216 |
'e' => ['multiplier' => 1E1, 'name' => 'dekao'], |
| 217 |
'da' => ['multiplier' => 1E1, 'name' => 'dekao'], |
| 218 |
'd' => ['multiplier' => 1E-1, 'name' => 'deci'], |
| 219 |
'c' => ['multiplier' => 1E-2, 'name' => 'centi'], |
| 220 |
'm' => ['multiplier' => 1E-3, 'name' => 'milli'], |
| 221 |
'u' => ['multiplier' => 1E-6, 'name' => 'micro'], |
| 222 |
'n' => ['multiplier' => 1E-9, 'name' => 'nano'], |
| 223 |
'p' => ['multiplier' => 1E-12, 'name' => 'pico'], |
| 224 |
'f' => ['multiplier' => 1E-15, 'name' => 'femto'], |
| 225 |
'a' => ['multiplier' => 1E-18, 'name' => 'atto'], |
| 226 |
'z' => ['multiplier' => 1E-21, 'name' => 'zepto'], |
| 227 |
'y' => ['multiplier' => 1E-24, 'name' => 'yocto'], |
| 228 |
]; |
| 229 |
|
| 230 |
/** |
| 231 |
* Details of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). |
| 232 |
* |
| 233 |
* @var array<string, array{multiplier: float|int, name: string}> |
| 234 |
*/ |
| 235 |
private static array $binaryConversionMultipliers = [ |
| 236 |
'Yi' => ['multiplier' => 2 ** 80, 'name' => 'yobi'], |
| 237 |
'Zi' => ['multiplier' => 2 ** 70, 'name' => 'zebi'], |
| 238 |
'Ei' => ['multiplier' => 2 ** 60, 'name' => 'exbi'], |
| 239 |
'Pi' => ['multiplier' => 2 ** 50, 'name' => 'pebi'], |
| 240 |
'Ti' => ['multiplier' => 2 ** 40, 'name' => 'tebi'], |
| 241 |
'Gi' => ['multiplier' => 2 ** 30, 'name' => 'gibi'], |
| 242 |
'Mi' => ['multiplier' => 2 ** 20, 'name' => 'mebi'], |
| 243 |
'ki' => ['multiplier' => 2 ** 10, 'name' => 'kibi'], |
| 244 |
]; |
| 245 |
|
| 246 |
/** |
| 247 |
* Details of the Units of measure conversion factors, organised by group. |
| 248 |
* |
| 249 |
* @var array<string, array<string, float>> |
| 250 |
*/ |
| 251 |
private static array $unitConversions = [ |
| 252 |
// Conversion uses gram (g) as an intermediate unit |
| 253 |
self::CATEGORY_WEIGHT_AND_MASS => [ |
| 254 |
'g' => 1.0, |
| 255 |
'sg' => 6.85217658567918E-05, |
| 256 |
'lbm' => 2.20462262184878E-03, |
| 257 |
'u' => 6.02214179421676E+23, |
| 258 |
'ozm' => 3.52739619495804E-02, |
| 259 |
'grain' => 1.54323583529414E+01, |
| 260 |
'cwt' => 2.20462262184878E-05, |
| 261 |
'shweight' => 2.20462262184878E-05, |
| 262 |
'uk_cwt' => 1.96841305522212E-05, |
| 263 |
'lcwt' => 1.96841305522212E-05, |
| 264 |
'hweight' => 1.96841305522212E-05, |
| 265 |
'stone' => 1.57473044417770E-04, |
| 266 |
'ton' => 1.10231131092439E-06, |
| 267 |
'uk_ton' => 9.84206527611061E-07, |
| 268 |
'LTON' => 9.84206527611061E-07, |
| 269 |
'brton' => 9.84206527611061E-07, |
| 270 |
], |
| 271 |
// Conversion uses meter (m) as an intermediate unit |
| 272 |
self::CATEGORY_DISTANCE => [ |
| 273 |
'm' => 1.0, |
| 274 |
'mi' => 6.21371192237334E-04, |
| 275 |
'Nmi' => 5.39956803455724E-04, |
| 276 |
'in' => 3.93700787401575E+01, |
| 277 |
'ft' => 3.28083989501312E+00, |
| 278 |
'yd' => 1.09361329833771E+00, |
| 279 |
'ang' => 1.0E+10, |
| 280 |
'ell' => 8.74890638670166E-01, |
| 281 |
'ly' => 1.05700083402462E-16, |
| 282 |
'parsec' => 3.24077928966473E-17, |
| 283 |
'pc' => 3.24077928966473E-17, |
| 284 |
'Pica' => 2.83464566929134E+03, |
| 285 |
'Picapt' => 2.83464566929134E+03, |
| 286 |
'pica' => 2.36220472440945E+02, |
| 287 |
'survey_mi' => 6.21369949494950E-04, |
| 288 |
], |
| 289 |
// Conversion uses second (s) as an intermediate unit |
| 290 |
self::CATEGORY_TIME => [ |
| 291 |
'yr' => 3.16880878140289E-08, |
| 292 |
'day' => 1.15740740740741E-05, |
| 293 |
'd' => 1.15740740740741E-05, |
| 294 |
'hr' => 2.77777777777778E-04, |
| 295 |
'mn' => 1.66666666666667E-02, |
| 296 |
'min' => 1.66666666666667E-02, |
| 297 |
'sec' => 1.0, |
| 298 |
's' => 1.0, |
| 299 |
], |
| 300 |
// Conversion uses Pascal (Pa) as an intermediate unit |
| 301 |
self::CATEGORY_PRESSURE => [ |
| 302 |
'Pa' => 1.0, |
| 303 |
'p' => 1.0, |
| 304 |
'atm' => 9.86923266716013E-06, |
| 305 |
'at' => 9.86923266716013E-06, |
| 306 |
'mmHg' => 7.50063755419211E-03, |
| 307 |
'psi' => 1.45037737730209E-04, |
| 308 |
'Torr' => 7.50061682704170E-03, |
| 309 |
], |
| 310 |
// Conversion uses Newton (N) as an intermediate unit |
| 311 |
self::CATEGORY_FORCE => [ |
| 312 |
'N' => 1.0, |
| 313 |
'dyn' => 1.0E+5, |
| 314 |
'dy' => 1.0E+5, |
| 315 |
'lbf' => 2.24808923655339E-01, |
| 316 |
'pond' => 1.01971621297793E+02, |
| 317 |
], |
| 318 |
// Conversion uses Joule (J) as an intermediate unit |
| 319 |
self::CATEGORY_ENERGY => [ |
| 320 |
'J' => 1.0, |
| 321 |
'e' => 9.99999519343231E+06, |
| 322 |
'c' => 2.39006249473467E-01, |
| 323 |
'cal' => 2.38846190642017E-01, |
| 324 |
'eV' => 6.24145700000000E+18, |
| 325 |
'ev' => 6.24145700000000E+18, |
| 326 |
'HPh' => 3.72506430801000E-07, |
| 327 |
'hh' => 3.72506430801000E-07, |
| 328 |
'Wh' => 2.77777916238711E-04, |
| 329 |
'wh' => 2.77777916238711E-04, |
| 330 |
'flb' => 2.37304222192651E+01, |
| 331 |
'BTU' => 9.47815067349015E-04, |
| 332 |
'btu' => 9.47815067349015E-04, |
| 333 |
], |
| 334 |
// Conversion uses Horsepower (HP) as an intermediate unit |
| 335 |
self::CATEGORY_POWER => [ |
| 336 |
'HP' => 1.0, |
| 337 |
'h' => 1.0, |
| 338 |
'W' => 7.45699871582270E+02, |
| 339 |
'w' => 7.45699871582270E+02, |
| 340 |
'PS' => 1.01386966542400E+00, |
| 341 |
], |
| 342 |
// Conversion uses Tesla (T) as an intermediate unit |
| 343 |
self::CATEGORY_MAGNETISM => [ |
| 344 |
'T' => 1.0, |
| 345 |
'ga' => 10000.0, |
| 346 |
], |
| 347 |
// Conversion uses litre (l) as an intermediate unit |
| 348 |
self::CATEGORY_VOLUME => [ |
| 349 |
'l' => 1.0, |
| 350 |
'L' => 1.0, |
| 351 |
'lt' => 1.0, |
| 352 |
'tsp' => 2.02884136211058E+02, |
| 353 |
'tspm' => 2.0E+02, |
| 354 |
'tbs' => 6.76280454036860E+01, |
| 355 |
'oz' => 3.38140227018430E+01, |
| 356 |
'cup' => 4.22675283773038E+00, |
| 357 |
'pt' => 2.11337641886519E+00, |
| 358 |
'us_pt' => 2.11337641886519E+00, |
| 359 |
'uk_pt' => 1.75975398639270E+00, |
| 360 |
'qt' => 1.05668820943259E+00, |
| 361 |
'uk_qt' => 8.79876993196351E-01, |
| 362 |
'gal' => 2.64172052358148E-01, |
| 363 |
'uk_gal' => 2.19969248299088E-01, |
| 364 |
'ang3' => 1.0E+27, |
| 365 |
'ang^3' => 1.0E+27, |
| 366 |
'barrel' => 6.28981077043211E-03, |
| 367 |
'bushel' => 2.83775932584017E-02, |
| 368 |
'in3' => 6.10237440947323E+01, |
| 369 |
'in^3' => 6.10237440947323E+01, |
| 370 |
'ft3' => 3.53146667214886E-02, |
| 371 |
'ft^3' => 3.53146667214886E-02, |
| 372 |
'ly3' => 1.18093498844171E-51, |
| 373 |
'ly^3' => 1.18093498844171E-51, |
| 374 |
'm3' => 1.0E-03, |
| 375 |
'm^3' => 1.0E-03, |
| 376 |
'mi3' => 2.39912758578928E-13, |
| 377 |
'mi^3' => 2.39912758578928E-13, |
| 378 |
'yd3' => 1.30795061931439E-03, |
| 379 |
'yd^3' => 1.30795061931439E-03, |
| 380 |
'Nmi3' => 1.57426214685811E-13, |
| 381 |
'Nmi^3' => 1.57426214685811E-13, |
| 382 |
'Pica3' => 2.27769904358706E+07, |
| 383 |
'Pica^3' => 2.27769904358706E+07, |
| 384 |
'Picapt3' => 2.27769904358706E+07, |
| 385 |
'Picapt^3' => 2.27769904358706E+07, |
| 386 |
'GRT' => 3.53146667214886E-04, |
| 387 |
'regton' => 3.53146667214886E-04, |
| 388 |
'MTON' => 8.82866668037215E-04, |
| 389 |
], |
| 390 |
// Conversion uses hectare (ha) as an intermediate unit |
| 391 |
self::CATEGORY_AREA => [ |
| 392 |
'ha' => 1.0, |
| 393 |
'uk_acre' => 2.47105381467165E+00, |
| 394 |
'us_acre' => 2.47104393046628E+00, |
| 395 |
'ang2' => 1.0E+24, |
| 396 |
'ang^2' => 1.0E+24, |
| 397 |
'ar' => 1.0E+02, |
| 398 |
'ft2' => 1.07639104167097E+05, |
| 399 |
'ft^2' => 1.07639104167097E+05, |
| 400 |
'in2' => 1.55000310000620E+07, |
| 401 |
'in^2' => 1.55000310000620E+07, |
| 402 |
'ly2' => 1.11725076312873E-28, |
| 403 |
'ly^2' => 1.11725076312873E-28, |
| 404 |
'm2' => 1.0E+04, |
| 405 |
'm^2' => 1.0E+04, |
| 406 |
'Morgen' => 4.0E+00, |
| 407 |
'mi2' => 3.86102158542446E-03, |
| 408 |
'mi^2' => 3.86102158542446E-03, |
| 409 |
'Nmi2' => 2.91553349598123E-03, |
| 410 |
'Nmi^2' => 2.91553349598123E-03, |
| 411 |
'Pica2' => 8.03521607043214E+10, |
| 412 |
'Pica^2' => 8.03521607043214E+10, |
| 413 |
'Picapt2' => 8.03521607043214E+10, |
| 414 |
'Picapt^2' => 8.03521607043214E+10, |
| 415 |
'yd2' => 1.19599004630108E+04, |
| 416 |
'yd^2' => 1.19599004630108E+04, |
| 417 |
], |
| 418 |
// Conversion uses bit (bit) as an intermediate unit |
| 419 |
self::CATEGORY_INFORMATION => [ |
| 420 |
'bit' => 1.0, |
| 421 |
'byte' => 0.125, |
| 422 |
], |
| 423 |
// Conversion uses Meters per Second (m/s) as an intermediate unit |
| 424 |
self::CATEGORY_SPEED => [ |
| 425 |
'm/s' => 1.0, |
| 426 |
'm/sec' => 1.0, |
| 427 |
'm/h' => 3.60E+03, |
| 428 |
'm/hr' => 3.60E+03, |
| 429 |
'mph' => 2.23693629205440E+00, |
| 430 |
'admkn' => 1.94260256941567E+00, |
| 431 |
'kn' => 1.94384449244060E+00, |
| 432 |
], |
| 433 |
]; |
| 434 |
|
| 435 |
/** |
| 436 |
* getConversionGroups |
| 437 |
* Returns a list of the different conversion groups for UOM conversions. |
| 438 |
* |
| 439 |
* @return string[] |
| 440 |
*/ |
| 441 |
public static function getConversionCategories(): array |
| 442 |
{ |
| 443 |
$conversionGroups = []; |
| 444 |
foreach (self::$conversionUnits as $conversionUnit) { |
| 445 |
$conversionGroups[] = $conversionUnit['Group']; |
| 446 |
} |
| 447 |
|
| 448 |
return array_merge(array_unique($conversionGroups)); |
| 449 |
} |
| 450 |
|
| 451 |
/** |
| 452 |
* getConversionGroupUnits |
| 453 |
* Returns an array of units of measure, for a specified conversion group, or for all groups. |
| 454 |
* |
| 455 |
* @param ?string $category The group whose units of measure you want to retrieve |
| 456 |
* |
| 457 |
* @return string[][] |
| 458 |
*/ |
| 459 |
public static function getConversionCategoryUnits(?string $category = null): array |
| 460 |
{ |
| 461 |
$conversionGroups = []; |
| 462 |
foreach (self::$conversionUnits as $conversionUnit => $conversionGroup) { |
| 463 |
if (($category === null) || ($conversionGroup['Group'] == $category)) { |
| 464 |
$conversionGroups[$conversionGroup['Group']][] = $conversionUnit; |
| 465 |
} |
| 466 |
} |
| 467 |
|
| 468 |
return $conversionGroups; |
| 469 |
} |
| 470 |
|
| 471 |
/** |
| 472 |
* getConversionGroupUnitDetails. |
| 473 |
* |
| 474 |
* @param ?string $category The group whose units of measure you want to retrieve |
| 475 |
* |
| 476 |
* @return array<string, list<array<string, string>>> |
| 477 |
*/ |
| 478 |
public static function getConversionCategoryUnitDetails(?string $category = null): array |
| 479 |
{ |
| 480 |
$conversionGroups = []; |
| 481 |
foreach (self::$conversionUnits as $conversionUnit => $conversionGroup) { |
| 482 |
if (($category === null) || ($conversionGroup['Group'] == $category)) { |
| 483 |
$conversionGroups[$conversionGroup['Group']][] = [ |
| 484 |
'unit' => $conversionUnit, |
| 485 |
'description' => $conversionGroup['UnitName'], |
| 486 |
]; |
| 487 |
} |
| 488 |
} |
| 489 |
|
| 490 |
return $conversionGroups; |
| 491 |
} |
| 492 |
|
| 493 |
/** |
| 494 |
* getConversionMultipliers |
| 495 |
* Returns an array of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). |
| 496 |
* |
| 497 |
* @return array<string, array{multiplier: float, name: string}> |
| 498 |
*/ |
| 499 |
public static function getConversionMultipliers(): array |
| 500 |
{ |
| 501 |
return self::$conversionMultipliers; |
| 502 |
} |
| 503 |
|
| 504 |
/** |
| 505 |
* getBinaryConversionMultipliers |
| 506 |
* Returns an array of the additional Multiplier prefixes that can be used with Information Units of Measure in CONVERTUOM(). |
| 507 |
* |
| 508 |
* @return array<string, array{multiplier: float|int, name: string}> |
| 509 |
*/ |
| 510 |
public static function getBinaryConversionMultipliers(): array |
| 511 |
{ |
| 512 |
return self::$binaryConversionMultipliers; |
| 513 |
} |
| 514 |
|
| 515 |
/** |
| 516 |
* CONVERT. |
| 517 |
* |
| 518 |
* Converts a number from one measurement system to another. |
| 519 |
* For example, CONVERT can translate a table of distances in miles to a table of distances |
| 520 |
* in kilometers. |
| 521 |
* |
| 522 |
* Excel Function: |
| 523 |
* CONVERT(value,fromUOM,toUOM) |
| 524 |
* |
| 525 |
* @param array<mixed>|float|int|string $value the value in fromUOM to convert |
| 526 |
* Or can be an array of values |
| 527 |
* @param string|string[] $fromUOM the units for value |
| 528 |
* Or can be an array of values |
| 529 |
* @param string|string[] $toUOM the units for the result |
| 530 |
* Or can be an array of values |
| 531 |
* |
| 532 |
* @return float|mixed[]|string Result, or a string containing an error |
| 533 |
* If an array of numbers is passed as an argument, then the returned result will also be an array |
| 534 |
* with the same dimensions |
| 535 |
*/ |
| 536 |
public static function CONVERT($value, $fromUOM, $toUOM) |
| 537 |
{ |
| 538 |
if (is_array($value) || is_array($fromUOM) || is_array($toUOM)) { |
| 539 |
return self::evaluateArrayArguments([self::class, __FUNCTION__], $value, $fromUOM, $toUOM); |
| 540 |
} |
| 541 |
|
| 542 |
if (!is_numeric($value)) { |
| 543 |
return ExcelError::VALUE(); |
| 544 |
} |
| 545 |
|
| 546 |
try { |
| 547 |
[$fromUOM, $fromCategory, $fromMultiplier] = self::getUOMDetails($fromUOM); |
| 548 |
[$toUOM, $toCategory, $toMultiplier] = self::getUOMDetails($toUOM); |
| 549 |
} catch (Exception $exception) { |
| 550 |
return ExcelError::NA(); |
| 551 |
} |
| 552 |
|
| 553 |
if ($fromCategory !== $toCategory) { |
| 554 |
return ExcelError::NA(); |
| 555 |
} |
| 556 |
|
| 557 |
// @var float $value |
| 558 |
$value *= $fromMultiplier; |
| 559 |
|
| 560 |
if (($fromUOM === $toUOM) && ($fromMultiplier === $toMultiplier)) { |
| 561 |
// We've already factored $fromMultiplier into the value, so we need |
| 562 |
// to reverse it again |
| 563 |
return $value / $fromMultiplier; |
| 564 |
} elseif ($fromUOM === $toUOM) { |
| 565 |
return $value / $toMultiplier; |
| 566 |
} elseif ($fromCategory === self::CATEGORY_TEMPERATURE) { |
| 567 |
return self::convertTemperature($fromUOM, $toUOM, $value); |
| 568 |
} |
| 569 |
|
| 570 |
$baseValue = $value * (1.0 / self::$unitConversions[$fromCategory][$fromUOM]); |
| 571 |
|
| 572 |
return ($baseValue * self::$unitConversions[$fromCategory][$toUOM]) / $toMultiplier; |
| 573 |
} |
| 574 |
|
| 575 |
/** @return array{0: string, 1: string, 2: float} */ |
| 576 |
private static function getUOMDetails(string $uom): array |
| 577 |
{ |
| 578 |
if (isset(self::$conversionUnits[$uom])) { |
| 579 |
$unitCategory = self::$conversionUnits[$uom]['Group']; |
| 580 |
|
| 581 |
return [$uom, $unitCategory, 1.0]; |
| 582 |
} |
| 583 |
|
| 584 |
// Check 1-character standard metric multiplier prefixes |
| 585 |
$multiplierType = substr($uom, 0, 1); |
| 586 |
$uom = (string) substr($uom, 1); |
| 587 |
if (isset(self::$conversionUnits[$uom], self::$conversionMultipliers[$multiplierType])) { |
| 588 |
if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { |
| 589 |
throw new Exception('Prefix not allowed for UoM'); |
| 590 |
} |
| 591 |
$unitCategory = self::$conversionUnits[$uom]['Group']; |
| 592 |
|
| 593 |
return [$uom, $unitCategory, self::$conversionMultipliers[$multiplierType]['multiplier']]; |
| 594 |
} |
| 595 |
|
| 596 |
$multiplierType .= substr($uom, 0, 1); |
| 597 |
$uom = (string) substr($uom, 1); |
| 598 |
|
| 599 |
// Check 2-character standard metric multiplier prefixes |
| 600 |
if (isset(self::$conversionUnits[$uom], self::$conversionMultipliers[$multiplierType])) { |
| 601 |
if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { |
| 602 |
throw new Exception('Prefix not allowed for UoM'); |
| 603 |
} |
| 604 |
$unitCategory = self::$conversionUnits[$uom]['Group']; |
| 605 |
|
| 606 |
return [$uom, $unitCategory, self::$conversionMultipliers[$multiplierType]['multiplier']]; |
| 607 |
} |
| 608 |
|
| 609 |
// Check 2-character binary multiplier prefixes |
| 610 |
if (isset(self::$conversionUnits[$uom], self::$binaryConversionMultipliers[$multiplierType])) { |
| 611 |
if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { |
| 612 |
throw new Exception('Prefix not allowed for UoM'); |
| 613 |
} |
| 614 |
$unitCategory = self::$conversionUnits[$uom]['Group']; |
| 615 |
if ($unitCategory !== 'Information') { |
| 616 |
throw new Exception('Binary Prefix is only allowed for Information UoM'); |
| 617 |
} |
| 618 |
|
| 619 |
return [$uom, $unitCategory, self::$binaryConversionMultipliers[$multiplierType]['multiplier']]; |
| 620 |
} |
| 621 |
|
| 622 |
throw new Exception('UoM Not Found'); |
| 623 |
} |
| 624 |
|
| 625 |
/** |
| 626 |
* @param float|int $value |
| 627 |
* @return float|int |
| 628 |
*/ |
| 629 |
protected static function convertTemperature(string $fromUOM, string $toUOM, $value) |
| 630 |
{ |
| 631 |
$fromUOM = self::resolveTemperatureSynonyms($fromUOM); |
| 632 |
$toUOM = self::resolveTemperatureSynonyms($toUOM); |
| 633 |
|
| 634 |
if ($fromUOM === $toUOM) { |
| 635 |
return $value; |
| 636 |
} |
| 637 |
|
| 638 |
// Convert to Kelvin |
| 639 |
switch ($fromUOM) { |
| 640 |
case 'F': |
| 641 |
$value = ($value - 32) / 1.8 + 273.15; |
| 642 |
|
| 643 |
break; |
| 644 |
case 'C': |
| 645 |
$value += 273.15; |
| 646 |
|
| 647 |
break; |
| 648 |
case 'Rank': |
| 649 |
$value /= 1.8; |
| 650 |
|
| 651 |
break; |
| 652 |
case 'Reau': |
| 653 |
$value = $value * 1.25 + 273.15; |
| 654 |
|
| 655 |
break; |
| 656 |
} |
| 657 |
|
| 658 |
// Convert from Kelvin |
| 659 |
switch ($toUOM) { |
| 660 |
case 'F': |
| 661 |
$value = ($value - 273.15) * 1.8 + 32.00; |
| 662 |
|
| 663 |
break; |
| 664 |
case 'C': |
| 665 |
$value -= 273.15; |
| 666 |
|
| 667 |
break; |
| 668 |
case 'Rank': |
| 669 |
$value *= 1.8; |
| 670 |
|
| 671 |
break; |
| 672 |
case 'Reau': |
| 673 |
$value = ($value - 273.15) * 0.80000; |
| 674 |
|
| 675 |
break; |
| 676 |
} |
| 677 |
|
| 678 |
return $value; |
| 679 |
} |
| 680 |
|
| 681 |
private static function resolveTemperatureSynonyms(string $uom): string |
| 682 |
{ |
| 683 |
switch ($uom) { |
| 684 |
case 'fah': |
| 685 |
return 'F'; |
| 686 |
case 'cel': |
| 687 |
return 'C'; |
| 688 |
case 'kel': |
| 689 |
return 'K'; |
| 690 |
default: |
| 691 |
return $uom; |
| 692 |
} |
| 693 |
} |
| 694 |
} |
| 695 |
|
