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Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
<?php namespace PhpOffice\PhpSpreadsheet\Calculation\Engineering;> use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;use PhpOffice\PhpSpreadsheet\Calculation\Exception;< use PhpOffice\PhpSpreadsheet\Calculation\Functions;> use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;class ConvertUOM {> use ArrayEnabled; public const CATEGORY_WEIGHT_AND_MASS = 'Weight and Mass'; >public const CATEGORY_DISTANCE = 'Distance'; public const CATEGORY_TIME = 'Time'; public const CATEGORY_PRESSURE = 'Pressure'; public const CATEGORY_FORCE = 'Force'; public const CATEGORY_ENERGY = 'Energy'; public const CATEGORY_POWER = 'Power'; public const CATEGORY_MAGNETISM = 'Magnetism'; public const CATEGORY_TEMPERATURE = 'Temperature'; public const CATEGORY_VOLUME = 'Volume and Liquid Measure'; public const CATEGORY_AREA = 'Area'; public const CATEGORY_INFORMATION = 'Information'; public const CATEGORY_SPEED = 'Speed'; /** * Details of the Units of measure that can be used in CONVERTUOM(). * * @var mixed[] */ private static $conversionUnits = [ // Weight and Mass 'g' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Gram', 'AllowPrefix' => true], 'sg' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Slug', 'AllowPrefix' => false], 'lbm' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Pound mass (avoirdupois)', 'AllowPrefix' => false], 'u' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'U (atomic mass unit)', 'AllowPrefix' => true], 'ozm' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Ounce mass (avoirdupois)', 'AllowPrefix' => false], 'grain' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Grain', 'AllowPrefix' => false], 'cwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'U.S. (short) hundredweight', 'AllowPrefix' => false], 'shweight' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'U.S. (short) hundredweight', 'AllowPrefix' => false], 'uk_cwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial hundredweight', 'AllowPrefix' => false], 'lcwt' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial hundredweight', 'AllowPrefix' => false], 'hweight' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial hundredweight', 'AllowPrefix' => false], 'stone' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Stone', 'AllowPrefix' => false], 'ton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Ton', 'AllowPrefix' => false], 'uk_ton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial ton', 'AllowPrefix' => false], 'LTON' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial ton', 'AllowPrefix' => false], 'brton' => ['Group' => self::CATEGORY_WEIGHT_AND_MASS, 'Unit Name' => 'Imperial ton', 'AllowPrefix' => false], // Distance 'm' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Meter', 'AllowPrefix' => true], 'mi' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Statute mile', 'AllowPrefix' => false], 'Nmi' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Nautical mile', 'AllowPrefix' => false], 'in' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Inch', 'AllowPrefix' => false], 'ft' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Foot', 'AllowPrefix' => false], 'yd' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Yard', 'AllowPrefix' => false], 'ang' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Angstrom', 'AllowPrefix' => true], 'ell' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Ell', 'AllowPrefix' => false], 'ly' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Light Year', 'AllowPrefix' => false], 'parsec' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Parsec', 'AllowPrefix' => false], 'pc' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Parsec', 'AllowPrefix' => false], 'Pica' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Pica (1/72 in)', 'AllowPrefix' => false], 'Picapt' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Pica (1/72 in)', 'AllowPrefix' => false], 'pica' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'Pica (1/6 in)', 'AllowPrefix' => false], 'survey_mi' => ['Group' => self::CATEGORY_DISTANCE, 'Unit Name' => 'U.S survey mile (statute mile)', 'AllowPrefix' => false], // Time 'yr' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Year', 'AllowPrefix' => false], 'day' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Day', 'AllowPrefix' => false], 'd' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Day', 'AllowPrefix' => false], 'hr' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Hour', 'AllowPrefix' => false], 'mn' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Minute', 'AllowPrefix' => false], 'min' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Minute', 'AllowPrefix' => false], 'sec' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Second', 'AllowPrefix' => true], 's' => ['Group' => self::CATEGORY_TIME, 'Unit Name' => 'Second', 'AllowPrefix' => true], // Pressure 'Pa' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'Pascal', 'AllowPrefix' => true], 'p' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'Pascal', 'AllowPrefix' => true], 'atm' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'Atmosphere', 'AllowPrefix' => true], 'at' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'Atmosphere', 'AllowPrefix' => true], 'mmHg' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'mm of Mercury', 'AllowPrefix' => true], 'psi' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'PSI', 'AllowPrefix' => true], 'Torr' => ['Group' => self::CATEGORY_PRESSURE, 'Unit Name' => 'Torr', 'AllowPrefix' => true], // Force 'N' => ['Group' => self::CATEGORY_FORCE, 'Unit Name' => 'Newton', 'AllowPrefix' => true], 'dyn' => ['Group' => self::CATEGORY_FORCE, 'Unit Name' => 'Dyne', 'AllowPrefix' => true], 'dy' => ['Group' => self::CATEGORY_FORCE, 'Unit Name' => 'Dyne', 'AllowPrefix' => true], 'lbf' => ['Group' => self::CATEGORY_FORCE, 'Unit Name' => 'Pound force', 'AllowPrefix' => false], 'pond' => ['Group' => self::CATEGORY_FORCE, 'Unit Name' => 'Pond', 'AllowPrefix' => true], // Energy 'J' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Joule', 'AllowPrefix' => true], 'e' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Erg', 'AllowPrefix' => true], 'c' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Thermodynamic calorie', 'AllowPrefix' => true], 'cal' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'IT calorie', 'AllowPrefix' => true], 'eV' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Electron volt', 'AllowPrefix' => true], 'ev' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Electron volt', 'AllowPrefix' => true], 'HPh' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Horsepower-hour', 'AllowPrefix' => false], 'hh' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Horsepower-hour', 'AllowPrefix' => false], 'Wh' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Watt-hour', 'AllowPrefix' => true], 'wh' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Watt-hour', 'AllowPrefix' => true], 'flb' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'Foot-pound', 'AllowPrefix' => false], 'BTU' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'BTU', 'AllowPrefix' => false], 'btu' => ['Group' => self::CATEGORY_ENERGY, 'Unit Name' => 'BTU', 'AllowPrefix' => false], // Power 'HP' => ['Group' => self::CATEGORY_POWER, 'Unit Name' => 'Horsepower', 'AllowPrefix' => false], 'h' => ['Group' => self::CATEGORY_POWER, 'Unit Name' => 'Horsepower', 'AllowPrefix' => false], 'W' => ['Group' => self::CATEGORY_POWER, 'Unit Name' => 'Watt', 'AllowPrefix' => true], 'w' => ['Group' => self::CATEGORY_POWER, 'Unit Name' => 'Watt', 'AllowPrefix' => true], 'PS' => ['Group' => self::CATEGORY_POWER, 'Unit Name' => 'Pferdestärke', 'AllowPrefix' => false],> // Magnetism'T' => ['Group' => self::CATEGORY_MAGNETISM, 'Unit Name' => 'Tesla', 'AllowPrefix' => true], 'ga' => ['Group' => self::CATEGORY_MAGNETISM, 'Unit Name' => 'Gauss', 'AllowPrefix' => true], // Temperature 'C' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Celsius', 'AllowPrefix' => false], 'cel' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Celsius', 'AllowPrefix' => false], 'F' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Fahrenheit', 'AllowPrefix' => false], 'fah' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Fahrenheit', 'AllowPrefix' => false], 'K' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Kelvin', 'AllowPrefix' => false], 'kel' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Kelvin', 'AllowPrefix' => false], 'Rank' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Rankine', 'AllowPrefix' => false], 'Reau' => ['Group' => self::CATEGORY_TEMPERATURE, 'Unit Name' => 'Degrees Réaumur', 'AllowPrefix' => false], // Volume 'l' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Litre', 'AllowPrefix' => true], 'L' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Litre', 'AllowPrefix' => true], 'lt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Litre', 'AllowPrefix' => true], 'tsp' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Teaspoon', 'AllowPrefix' => false], 'tspm' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Modern Teaspoon', 'AllowPrefix' => false], 'tbs' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Tablespoon', 'AllowPrefix' => false], 'oz' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Fluid Ounce', 'AllowPrefix' => false], 'cup' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cup', 'AllowPrefix' => false], 'pt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'U.S. Pint', 'AllowPrefix' => false], 'us_pt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'U.S. Pint', 'AllowPrefix' => false], 'uk_pt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'U.K. Pint', 'AllowPrefix' => false], 'qt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Quart', 'AllowPrefix' => false], 'uk_qt' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Imperial Quart (UK)', 'AllowPrefix' => false], 'gal' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Gallon', 'AllowPrefix' => false], 'uk_gal' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Imperial Gallon (UK)', 'AllowPrefix' => false], 'ang3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Angstrom', 'AllowPrefix' => true], 'ang^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Angstrom', 'AllowPrefix' => true], 'barrel' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'US Oil Barrel', 'AllowPrefix' => false], 'bushel' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'US Bushel', 'AllowPrefix' => false], 'in3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Inch', 'AllowPrefix' => false], 'in^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Inch', 'AllowPrefix' => false], 'ft3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Foot', 'AllowPrefix' => false], 'ft^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Foot', 'AllowPrefix' => false], 'ly3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Light Year', 'AllowPrefix' => false], 'ly^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Light Year', 'AllowPrefix' => false], 'm3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Meter', 'AllowPrefix' => true], 'm^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Meter', 'AllowPrefix' => true], 'mi3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Mile', 'AllowPrefix' => false], 'mi^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Mile', 'AllowPrefix' => false], 'yd3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Yard', 'AllowPrefix' => false], 'yd^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Yard', 'AllowPrefix' => false], 'Nmi3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Nautical Mile', 'AllowPrefix' => false], 'Nmi^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Nautical Mile', 'AllowPrefix' => false], 'Pica3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Pica', 'AllowPrefix' => false], 'Pica^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Pica', 'AllowPrefix' => false], 'Picapt3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Pica', 'AllowPrefix' => false], 'Picapt^3' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Cubic Pica', 'AllowPrefix' => false], 'GRT' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Gross Registered Ton', 'AllowPrefix' => false], 'regton' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Gross Registered Ton', 'AllowPrefix' => false], 'MTON' => ['Group' => self::CATEGORY_VOLUME, 'Unit Name' => 'Measurement Ton (Freight Ton)', 'AllowPrefix' => false], // Area 'ha' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Hectare', 'AllowPrefix' => true], 'uk_acre' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'International Acre', 'AllowPrefix' => false], 'us_acre' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'US Survey/Statute Acre', 'AllowPrefix' => false], 'ang2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Angstrom', 'AllowPrefix' => true], 'ang^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Angstrom', 'AllowPrefix' => true], 'ar' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Are', 'AllowPrefix' => true], 'ft2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Feet', 'AllowPrefix' => false], 'ft^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Feet', 'AllowPrefix' => false], 'in2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Inches', 'AllowPrefix' => false], 'in^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Inches', 'AllowPrefix' => false], 'ly2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Light Years', 'AllowPrefix' => false], 'ly^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Light Years', 'AllowPrefix' => false], 'm2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Meters', 'AllowPrefix' => true], 'm^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Meters', 'AllowPrefix' => true], 'Morgen' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Morgen', 'AllowPrefix' => false], 'mi2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Miles', 'AllowPrefix' => false], 'mi^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Miles', 'AllowPrefix' => false], 'Nmi2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Nautical Miles', 'AllowPrefix' => false], 'Nmi^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Nautical Miles', 'AllowPrefix' => false], 'Pica2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Pica', 'AllowPrefix' => false], 'Pica^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Pica', 'AllowPrefix' => false], 'Picapt2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Pica', 'AllowPrefix' => false], 'Picapt^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Pica', 'AllowPrefix' => false], 'yd2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Yards', 'AllowPrefix' => false], 'yd^2' => ['Group' => self::CATEGORY_AREA, 'Unit Name' => 'Square Yards', 'AllowPrefix' => false], // Information 'byte' => ['Group' => self::CATEGORY_INFORMATION, 'Unit Name' => 'Byte', 'AllowPrefix' => true], 'bit' => ['Group' => self::CATEGORY_INFORMATION, 'Unit Name' => 'Bit', 'AllowPrefix' => true], // Speed 'm/s' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Meters per second', 'AllowPrefix' => true], 'm/sec' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Meters per second', 'AllowPrefix' => true], 'm/h' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Meters per hour', 'AllowPrefix' => true], 'm/hr' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Meters per hour', 'AllowPrefix' => true], 'mph' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Miles per hour', 'AllowPrefix' => false], 'admkn' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Admiralty Knot', 'AllowPrefix' => false], 'kn' => ['Group' => self::CATEGORY_SPEED, 'Unit Name' => 'Knot', 'AllowPrefix' => false], ]; /** * Details of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). * * @var mixed[] */ private static $conversionMultipliers = [ 'Y' => ['multiplier' => 1E24, 'name' => 'yotta'], 'Z' => ['multiplier' => 1E21, 'name' => 'zetta'], 'E' => ['multiplier' => 1E18, 'name' => 'exa'], 'P' => ['multiplier' => 1E15, 'name' => 'peta'], 'T' => ['multiplier' => 1E12, 'name' => 'tera'], 'G' => ['multiplier' => 1E9, 'name' => 'giga'], 'M' => ['multiplier' => 1E6, 'name' => 'mega'], 'k' => ['multiplier' => 1E3, 'name' => 'kilo'], 'h' => ['multiplier' => 1E2, 'name' => 'hecto'], 'e' => ['multiplier' => 1E1, 'name' => 'dekao'], 'da' => ['multiplier' => 1E1, 'name' => 'dekao'], 'd' => ['multiplier' => 1E-1, 'name' => 'deci'], 'c' => ['multiplier' => 1E-2, 'name' => 'centi'], 'm' => ['multiplier' => 1E-3, 'name' => 'milli'], 'u' => ['multiplier' => 1E-6, 'name' => 'micro'], 'n' => ['multiplier' => 1E-9, 'name' => 'nano'], 'p' => ['multiplier' => 1E-12, 'name' => 'pico'], 'f' => ['multiplier' => 1E-15, 'name' => 'femto'], 'a' => ['multiplier' => 1E-18, 'name' => 'atto'], 'z' => ['multiplier' => 1E-21, 'name' => 'zepto'], 'y' => ['multiplier' => 1E-24, 'name' => 'yocto'], ]; /** * Details of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). * * @var mixed[] */ private static $binaryConversionMultipliers = [ 'Yi' => ['multiplier' => 2 ** 80, 'name' => 'yobi'], 'Zi' => ['multiplier' => 2 ** 70, 'name' => 'zebi'], 'Ei' => ['multiplier' => 2 ** 60, 'name' => 'exbi'], 'Pi' => ['multiplier' => 2 ** 50, 'name' => 'pebi'], 'Ti' => ['multiplier' => 2 ** 40, 'name' => 'tebi'], 'Gi' => ['multiplier' => 2 ** 30, 'name' => 'gibi'], 'Mi' => ['multiplier' => 2 ** 20, 'name' => 'mebi'], 'ki' => ['multiplier' => 2 ** 10, 'name' => 'kibi'], ]; /** * Details of the Units of measure conversion factors, organised by group. * * @var mixed[] */ private static $unitConversions = [ // Conversion uses gram (g) as an intermediate unit self::CATEGORY_WEIGHT_AND_MASS => [ 'g' => 1.0, 'sg' => 6.85217658567918E-05, 'lbm' => 2.20462262184878E-03, 'u' => 6.02214179421676E+23, 'ozm' => 3.52739619495804E-02, 'grain' => 1.54323583529414E+01, 'cwt' => 2.20462262184878E-05, 'shweight' => 2.20462262184878E-05, 'uk_cwt' => 1.96841305522212E-05, 'lcwt' => 1.96841305522212E-05, 'hweight' => 1.96841305522212E-05, 'stone' => 1.57473044417770E-04, 'ton' => 1.10231131092439E-06, 'uk_ton' => 9.84206527611061E-07, 'LTON' => 9.84206527611061E-07, 'brton' => 9.84206527611061E-07, ], // Conversion uses meter (m) as an intermediate unit self::CATEGORY_DISTANCE => [ 'm' => 1.0, 'mi' => 6.21371192237334E-04, 'Nmi' => 5.39956803455724E-04, 'in' => 3.93700787401575E+01, 'ft' => 3.28083989501312E+00, 'yd' => 1.09361329833771E+00, 'ang' => 1.0E+10, 'ell' => 8.74890638670166E-01, 'ly' => 1.05700083402462E-16, 'parsec' => 3.24077928966473E-17, 'pc' => 3.24077928966473E-17, 'Pica' => 2.83464566929134E+03, 'Picapt' => 2.83464566929134E+03, 'pica' => 2.36220472440945E+02, 'survey_mi' => 6.21369949494950E-04, ], // Conversion uses second (s) as an intermediate unit self::CATEGORY_TIME => [ 'yr' => 3.16880878140289E-08, 'day' => 1.15740740740741E-05, 'd' => 1.15740740740741E-05, 'hr' => 2.77777777777778E-04, 'mn' => 1.66666666666667E-02, 'min' => 1.66666666666667E-02, 'sec' => 1.0, 's' => 1.0, ], // Conversion uses Pascal (Pa) as an intermediate unit self::CATEGORY_PRESSURE => [ 'Pa' => 1.0, 'p' => 1.0, 'atm' => 9.86923266716013E-06, 'at' => 9.86923266716013E-06, 'mmHg' => 7.50063755419211E-03, 'psi' => 1.45037737730209E-04, 'Torr' => 7.50061682704170E-03, ], // Conversion uses Newton (N) as an intermediate unit self::CATEGORY_FORCE => [ 'N' => 1.0, 'dyn' => 1.0E+5, 'dy' => 1.0E+5, 'lbf' => 2.24808923655339E-01, 'pond' => 1.01971621297793E+02, ], // Conversion uses Joule (J) as an intermediate unit self::CATEGORY_ENERGY => [ 'J' => 1.0, 'e' => 9.99999519343231E+06, 'c' => 2.39006249473467E-01, 'cal' => 2.38846190642017E-01, 'eV' => 6.24145700000000E+18, 'ev' => 6.24145700000000E+18, 'HPh' => 3.72506430801000E-07, 'hh' => 3.72506430801000E-07, 'Wh' => 2.77777916238711E-04, 'wh' => 2.77777916238711E-04, 'flb' => 2.37304222192651E+01, 'BTU' => 9.47815067349015E-04, 'btu' => 9.47815067349015E-04, ], // Conversion uses Horsepower (HP) as an intermediate unit self::CATEGORY_POWER => [ 'HP' => 1.0, 'h' => 1.0, 'W' => 7.45699871582270E+02, 'w' => 7.45699871582270E+02, 'PS' => 1.01386966542400E+00, ], // Conversion uses Tesla (T) as an intermediate unit self::CATEGORY_MAGNETISM => [ 'T' => 1.0, 'ga' => 10000.0, ], // Conversion uses litre (l) as an intermediate unit self::CATEGORY_VOLUME => [ 'l' => 1.0, 'L' => 1.0, 'lt' => 1.0, 'tsp' => 2.02884136211058E+02, 'tspm' => 2.0E+02, 'tbs' => 6.76280454036860E+01, 'oz' => 3.38140227018430E+01, 'cup' => 4.22675283773038E+00, 'pt' => 2.11337641886519E+00, 'us_pt' => 2.11337641886519E+00, 'uk_pt' => 1.75975398639270E+00, 'qt' => 1.05668820943259E+00, 'uk_qt' => 8.79876993196351E-01, 'gal' => 2.64172052358148E-01, 'uk_gal' => 2.19969248299088E-01, 'ang3' => 1.0E+27, 'ang^3' => 1.0E+27, 'barrel' => 6.28981077043211E-03, 'bushel' => 2.83775932584017E-02, 'in3' => 6.10237440947323E+01, 'in^3' => 6.10237440947323E+01, 'ft3' => 3.53146667214886E-02, 'ft^3' => 3.53146667214886E-02, 'ly3' => 1.18093498844171E-51, 'ly^3' => 1.18093498844171E-51, 'm3' => 1.0E-03, 'm^3' => 1.0E-03, 'mi3' => 2.39912758578928E-13, 'mi^3' => 2.39912758578928E-13, 'yd3' => 1.30795061931439E-03, 'yd^3' => 1.30795061931439E-03, 'Nmi3' => 1.57426214685811E-13, 'Nmi^3' => 1.57426214685811E-13, 'Pica3' => 2.27769904358706E+07, 'Pica^3' => 2.27769904358706E+07, 'Picapt3' => 2.27769904358706E+07, 'Picapt^3' => 2.27769904358706E+07, 'GRT' => 3.53146667214886E-04, 'regton' => 3.53146667214886E-04, 'MTON' => 8.82866668037215E-04, ], // Conversion uses hectare (ha) as an intermediate unit self::CATEGORY_AREA => [ 'ha' => 1.0, 'uk_acre' => 2.47105381467165E+00, 'us_acre' => 2.47104393046628E+00, 'ang2' => 1.0E+24, 'ang^2' => 1.0E+24, 'ar' => 1.0E+02, 'ft2' => 1.07639104167097E+05, 'ft^2' => 1.07639104167097E+05, 'in2' => 1.55000310000620E+07, 'in^2' => 1.55000310000620E+07, 'ly2' => 1.11725076312873E-28, 'ly^2' => 1.11725076312873E-28, 'm2' => 1.0E+04, 'm^2' => 1.0E+04, 'Morgen' => 4.0E+00, 'mi2' => 3.86102158542446E-03, 'mi^2' => 3.86102158542446E-03, 'Nmi2' => 2.91553349598123E-03, 'Nmi^2' => 2.91553349598123E-03, 'Pica2' => 8.03521607043214E+10, 'Pica^2' => 8.03521607043214E+10, 'Picapt2' => 8.03521607043214E+10, 'Picapt^2' => 8.03521607043214E+10, 'yd2' => 1.19599004630108E+04, 'yd^2' => 1.19599004630108E+04, ], // Conversion uses bit (bit) as an intermediate unit self::CATEGORY_INFORMATION => [ 'bit' => 1.0, 'byte' => 0.125, ], // Conversion uses Meters per Second (m/s) as an intermediate unit self::CATEGORY_SPEED => [ 'm/s' => 1.0, 'm/sec' => 1.0, 'm/h' => 3.60E+03, 'm/hr' => 3.60E+03, 'mph' => 2.23693629205440E+00, 'admkn' => 1.94260256941567E+00, 'kn' => 1.94384449244060E+00, ], ]; /** * getConversionGroups * Returns a list of the different conversion groups for UOM conversions. * * @return array */ public static function getConversionCategories() { $conversionGroups = []; foreach (self::$conversionUnits as $conversionUnit) { $conversionGroups[] = $conversionUnit['Group']; } return array_merge(array_unique($conversionGroups)); } /** * getConversionGroupUnits * Returns an array of units of measure, for a specified conversion group, or for all groups. * * @param string $category The group whose units of measure you want to retrieve * * @return array */ public static function getConversionCategoryUnits($category = null) { $conversionGroups = []; foreach (self::$conversionUnits as $conversionUnit => $conversionGroup) { if (($category === null) || ($conversionGroup['Group'] == $category)) { $conversionGroups[$conversionGroup['Group']][] = $conversionUnit; } } return $conversionGroups; } /** * getConversionGroupUnitDetails. * * @param string $category The group whose units of measure you want to retrieve * * @return array */ public static function getConversionCategoryUnitDetails($category = null) { $conversionGroups = []; foreach (self::$conversionUnits as $conversionUnit => $conversionGroup) { if (($category === null) || ($conversionGroup['Group'] == $category)) { $conversionGroups[$conversionGroup['Group']][] = [ 'unit' => $conversionUnit, 'description' => $conversionGroup['Unit Name'], ]; } } return $conversionGroups; } /** * getConversionMultipliers * Returns an array of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM(). *< * @return array of mixed> * @return mixed[]*/ public static function getConversionMultipliers() { return self::$conversionMultipliers; } /** * getBinaryConversionMultipliers * Returns an array of the additional Multiplier prefixes that can be used with Information Units of Measure in CONVERTUOM(). *< * @return array of mixed> * @return mixed[]*/ public static function getBinaryConversionMultipliers() { return self::$binaryConversionMultipliers; } /** * CONVERT. * * Converts a number from one measurement system to another. * For example, CONVERT can translate a table of distances in miles to a table of distances * in kilometers. * * Excel Function: * CONVERT(value,fromUOM,toUOM) *< * @param float|int $value the value in fromUOM to convert < * @param string $fromUOM the units for value < * @param string $toUOM the units for the result < * < * @return float|string> * @param array|float|int|string $value the value in fromUOM to convert > * Or can be an array of values > * @param array|string $fromUOM the units for value > * Or can be an array of values > * @param array|string $toUOM the units for the result > * Or can be an array of values > * > * @return array|float|string Result, or a string containing an error > * If an array of numbers is passed as an argument, then the returned result will also be an array > * with the same dimensions*/ public static function CONVERT($value, $fromUOM, $toUOM) {< $value = Functions::flattenSingleValue($value); < $fromUOM = Functions::flattenSingleValue($fromUOM); < $toUOM = Functions::flattenSingleValue($toUOM);> if (is_array($value) || is_array($fromUOM) || is_array($toUOM)) { > return self::evaluateArrayArguments([self::class, __FUNCTION__], $value, $fromUOM, $toUOM); > }if (!is_numeric($value)) {< return Functions::VALUE();> return ExcelError::VALUE();} try { [$fromUOM, $fromCategory, $fromMultiplier] = self::getUOMDetails($fromUOM); [$toUOM, $toCategory, $toMultiplier] = self::getUOMDetails($toUOM); } catch (Exception $e) {< return Functions::NA();> return ExcelError::NA();} if ($fromCategory !== $toCategory) {< return Functions::NA();> return ExcelError::NA();}> // @var float $value$value *= $fromMultiplier; if (($fromUOM === $toUOM) && ($fromMultiplier === $toMultiplier)) { // We've already factored $fromMultiplier into the value, so we need // to reverse it again return $value / $fromMultiplier; } elseif ($fromUOM === $toUOM) { return $value / $toMultiplier; } elseif ($fromCategory === self::CATEGORY_TEMPERATURE) {< return self::convertTemperature($fromUOM, $toUOM, $value);> return self::convertTemperature($fromUOM, $toUOM, /** @scrutinizer ignore-type */ $value);} $baseValue = $value * (1.0 / self::$unitConversions[$fromCategory][$fromUOM]); return ($baseValue * self::$unitConversions[$fromCategory][$toUOM]) / $toMultiplier; }< private static function getUOMDetails(string $uom)> private static function getUOMDetails(string $uom): array{ if (isset(self::$conversionUnits[$uom])) { $unitCategory = self::$conversionUnits[$uom]['Group']; return [$uom, $unitCategory, 1.0]; } // Check 1-character standard metric multiplier prefixes $multiplierType = substr($uom, 0, 1); $uom = substr($uom, 1); if (isset(self::$conversionUnits[$uom], self::$conversionMultipliers[$multiplierType])) { if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { throw new Exception('Prefix not allowed for UoM'); } $unitCategory = self::$conversionUnits[$uom]['Group']; return [$uom, $unitCategory, self::$conversionMultipliers[$multiplierType]['multiplier']]; } $multiplierType .= substr($uom, 0, 1); $uom = substr($uom, 1); // Check 2-character standard metric multiplier prefixes if (isset(self::$conversionUnits[$uom], self::$conversionMultipliers[$multiplierType])) { if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { throw new Exception('Prefix not allowed for UoM'); } $unitCategory = self::$conversionUnits[$uom]['Group']; return [$uom, $unitCategory, self::$conversionMultipliers[$multiplierType]['multiplier']]; } // Check 2-character binary multiplier prefixes if (isset(self::$conversionUnits[$uom], self::$binaryConversionMultipliers[$multiplierType])) { if (self::$conversionUnits[$uom]['AllowPrefix'] === false) { throw new Exception('Prefix not allowed for UoM'); } $unitCategory = self::$conversionUnits[$uom]['Group']; if ($unitCategory !== 'Information') { throw new Exception('Binary Prefix is only allowed for Information UoM'); } return [$uom, $unitCategory, self::$binaryConversionMultipliers[$multiplierType]['multiplier']]; } throw new Exception('UoM Not Found'); } /** * @param float|int $value * * @return float|int */ protected static function convertTemperature(string $fromUOM, string $toUOM, $value) { $fromUOM = self::resolveTemperatureSynonyms($fromUOM); $toUOM = self::resolveTemperatureSynonyms($toUOM); if ($fromUOM === $toUOM) { return $value; } // Convert to Kelvin switch ($fromUOM) { case 'F': $value = ($value - 32) / 1.8 + 273.15; break; case 'C': $value += 273.15; break; case 'Rank': $value /= 1.8; break; case 'Reau': $value = $value * 1.25 + 273.15; break; } // Convert from Kelvin switch ($toUOM) { case 'F': $value = ($value - 273.15) * 1.8 + 32.00; break; case 'C': $value -= 273.15; break; case 'Rank': $value *= 1.8; break; case 'Reau': $value = ($value - 273.15) * 0.80000; break; } return $value; }< private static function resolveTemperatureSynonyms(string $uom)> private static function resolveTemperatureSynonyms(string $uom): string{ switch ($uom) { case 'fah': return 'F'; case 'cel': return 'C'; case 'kel': return 'K'; } return $uom; } }
