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UnitConverter.php
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258 lines (234 loc) · 17 KB
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<?php
/*
project : converter
author : Nazish Fraz
Date : 18-05-2017
copyright reserved
*/
class UnitConverter{
private $number,$from,$to;
private $unit=array();
function __construct(){
$this->init();
}
// initialize the unit array
private function init(){
$this->unit=array(
// unit of length
"m" => array("name" => "meter" , "base" => "m" , "factor" => 1), //meter - base unit for length
"km" => array("name" => "kilometer" , "base" => "m" , "factor" => 1000), //kilometer
"dm" => array("name" => "decimeter" , "base" => "m" , "factor" => 0.1), //decimeter
"cm" => array("name" => "centimeter" , "base" => "m" , "factor" => 0.01), //centimeter
"mm" => array("name" => "milimeter" , "base" => "m" , "factor" => 0.001), //milimeter
"μm" => array("name" => "micrometer" , "base" => "m" , "factor" => 0.000001), //micrometer
"nm" => array("name" => "nanometer" , "base" => "m" , "factor" => 0.000000001), //nanometer
"pm" => array("name" => "picometer" , "base" => "m" , "factor" => 0.000000000001), //picometer
"nmi" => array("name" => "nautical mile" , "base" => "m" , "factor" => 1852), //nautical mile
"mi" => array("name" => "mile" , "base" => "m" , "factor" => 1609.344), //mile
"fur" => array("name" => "femara" , "base" => "m" , "factor" => 201.168), //femara
"fm" => array("name" => "fathom" , "base" => "m" , "factor" => 1.8288), //fathom
"yd" => array("name" => "yard" , "base" => "m" , "factor" => 0.9144), //yard
"ft" => array("name" => "foot" , "base" => "m" , "factor" => 0.3048), //foot
"in" => array("name" => "inch" , "base" => "m" , "factor" => 0.0254), //inch
"hd" => array("name" => "hand" , "base" => "m" , "factor" => 0.1016), //hand
"ld" => array("name" => "lunar distance" , "base" => "m" , "factor" => 384401000), //lunar distance
"au" => array("name" => "astronomical unit" , "base" => "m" , "factor" => 149597870700), //astronomical unit
"ly" => array("name" => "lightyear" , "base" => "m" , "factor" => 9460730472580800), //lightyear
"pc" => array("name" => "parsec" , "base" => "m" , "factor" => 30856775814913672.789139379577965), //parsec
// unit of area
"m2" => array("name" => "meter square" , "base" => "m2" , "factor" => 1), //meter square - base unit for area
"km2" => array("name" => "kilometer square" , "base" => "m2" , "factor" => 1000000), //kilometer square
"ha" => array("name" => "hectare" , "base" => "m2" , "factor" => 10000), //hectare
"are" => array("name" => "are" , "base" => "m2" , "factor" => 100), //are
"dm2" => array("name" => "decimeter square" , "base" => "m2" , "factor" => 0.01), //decimeter square
"cm2" => array("name" => "centimeter square" , "base" => "m2" , "factor" => 0.0001), //centimeter square
"mm2" => array("name" => "milimeter square" , "base" => "m2" , "factor" => 0.000001), //milimeter square
"μm2" => array("name" => "micron square" , "base" => "m2" , "factor" => 0.000000000001), //micron square
"ac" => array("name" => "acre" , "base" => "m2" , "factor" => 4046.856), //acre
"mi2" => array("name" => "mile square" , "base" => "m2" , "factor" => 2589988.11), //mile square
"yd2" => array("name" => "yard square" , "base" => "m2" , "factor" => 0.83612736), //yard square
"ft2" => array("name" => "foot" , "base" => "m2" , "factor" => 0.09290304), //foot square
"in2" => array("name" => "inch" , "base" => "m2" , "factor" => 0.00064516), //inch square
"rd2" => array("name" => "rod" , "base" => "m2" , "factor" => 25.2928526), //rod square
// unit of volume
"m3" => array("name" => "meter cube" , "base" => "m3" , "factor" => 1), //meter cube - base unit for volume
"dm3" => array("name" => "decimeter cube" , "base" => "m3" , "factor" => 0.001), //decimeter cube
"cm3" => array("name" => "centimeter cube" , "base" => "m3" , "factor" => 0.000001), //centimeter cube
"mm3" => array("name" => "millimeter cube" , "base" => "m3" , "factor" => 0.000000001), //millimeter cube
"hl" => array("name" => "hectolitre" , "base" => "m3" , "factor" => 0.1), //hectolitre
"l" => array("name" => "litre" , "base" => "m3" , "factor" => 0.001), //litre
"dl" => array("name" => "decilitre" , "base" => "m3" , "factor" => 0.0001), //decilitre
"cl" => array("name" => "centilitre" , "base" => "m3" , "factor" => 0.00001), //centilitre
"ml" => array("name" => "millilitre" , "base" => "m3" , "factor" => 0.000001), //millilitre
"ft3" => array("name" => "foot cube" , "base" => "m3" , "factor" => 0.0283168466), //foot cube
"in3" => array("name" => "inch cube" , "base" => "m3" , "factor" => 0.000016387064), //inch cube
"yd3" => array("name" => "yard cube" , "base" => "m3" , "factor" => 0.764554858), //yard cube
"af3" => array("name" => "acre cube" , "base" => "m3" , "factor" => 1234), //acre foot
"pt" => array("name" => "pint" , "base" => "m3" , "factor" => 0.000473176), //pint
"gal" => array("name" => "gallon" , "base" => "m3" , "factor" => 0.00378541), //gallon
// unit of mass
"kg" => array("name" => "kilogram" , "base" => "kg" , "factor" => 1), //kilogram - base unit for mass
"t" => array("name" => "metric ton" , "base" => "kg" , "factor" => 1000), //metric ton
"g" => array("name" => "gram" , "base" => "kg" , "factor" => 0.001), //gram
"mg" => array("name" => "miligram" , "base" => "kg" , "factor" => 0.000001), //miligram
"μg" => array("name" => "microgram" , "base" => "kg" , "factor" => 0.000000001), //microgram
"q" => array("name" => "quintal" , "base" => "kg" , "factor" => 100), //quintal
"lb" => array("name" => "pound" , "base" => "kg" , "factor" => 0.45359237), //pound
"oz" => array("name" => "ounce" , "base" => "kg" , "factor" => 0.0283495231), //ounce
"ct" => array("name" => "carat" , "base" => "kg" , "factor" => 0.0002), //carat
"gr" => array("name" => "grain" , "base" => "kg" , "factor" => 0.00006479891), //grain
"lt" => array("name" => "long ton" , "base" => "kg" , "factor" => 1016.04691), //long ton
"st" => array("name" => "short ton" , "base" => "kg" , "factor" => 907.18474), //short ton
"kwt" => array("name" => "UK hundred weight" , "base" => "kg" , "factor" => 50.8023454), //uk hundred weight
"swt" => array("name" => "US hundred weight" , "base" => "kg" , "factor" => 45.359237), //us hundred weight
"st" => array("name" => "UK stone" , "base" => "kg" , "factor" => 6.35029318), //uk stone
"N" => array("name" => "newton" , "base" => "kg" , "factor" => 9.80665002863885), //Newton (based on earth gravity)
// unit of speed
"mps" => array("name" => "meter per second" , "base" => "mps" , "factor" => 1), //meter per second - base unit for speed
"kph" => array("name" => "kilometer per hour" , "base" => "mps" , "factor" => 0.2777777778), //kilometer per hour
"kps" => array("name" => "kilometer per second" , "base" => "mps" , "factor" => 1000), //kilometer per second
"mph" => array("name" => "mile per hour" , "base" => "mps" , "factor" => 0.44704), //mile per hour
"C" => array("name" => "lightspeed" , "base" => "mps" , "factor" => 299792458), //lightspeed
"ma" => array("name" => "mach" , "base" => "mps" , "factor" => 340.3), //mach
"kn" => array("name" => "knot" , "base" => "mps" , "factor" => 0.51444444444), //knot
"fps" => array("name" => "foot per hour" , "base" => "mps" , "factor" => 0.3048), //foot per hour
"ips" => array("name" => "inch per hour" , "base" => "mps" , "factor" => 0.0254), //inch per hour
// unit of time
"s" => array("name" => "second" , "base" => "s" , "factor" => 1), //second - base unit for time
"y" => array("name" => "year" , "base" => "s" , "factor" => 31536000), //year - standard year
"mth" => array("name" => "month" , "base" => "s" , "factor" => 18748800), //month - 31 days
"wk" => array("name" => "week" , "base" => "s" , "factor" => 604800), //week
"d" => array("name" => "day" , "base" => "s" , "factor" => 86400), //day
"h" => array("name" => "hour" , "base" => "s" , "factor" => 3600), //hour
"min" => array("name" => "minute" , "base" => "s" , "factor" => 30), //minute
"ms" => array("name" => "milisecond" , "base" => "s" , "factor" => 0.001), //milisecond
"μs" => array("name" => "microsecond" , "base" => "s" , "factor" => 0.000001), //microsecond
"ns" => array("name" => "nanosecond" , "base" => "s" , "factor" => 0.000000001), //nanosecond
"ps" => array("name" => "picosecond" , "base" => "s" , "factor" => 0.000000000001), //picosecond
// unit of plane angle
"deg" => array("name" => "degree" , "base" => "deg" , "factor" => 1), //degree - base unit for plane angle
"rad" => array("name" => "radian" , "base" => "deg" , "factor" => 57.2958), //radian
"gad" => array("name" => "gradian" , "base" => "deg" , "factor" => 0.9), //gradian
"mrad" => array("name" => "milliradian" , "base" => "deg" , "factor" => 0.0572958), //milliradian
"sa" => array("name" => "second of arc" , "base" => "deg" , "factor" => 0.00027777778), //second of arc
// unit of pressure
"pa" => array("name" => "Pascal" , "base" => "Pa" , "factor" => 1), //Pascal - base unit for Pressure
"kpa" => array("name" => "kilopascal" , "base" => "Pa" , "factor" => 1000), //kilopascal
"mpa" => array("name" => "megapascal" , "base" => "Pa" , "factor" => 1000000), //megapascal
"bar" => array("name" => "bar" , "base" => "Pa" , "factor" => 100000), //bar
"mbar" => array("name" => "milibar" , "base" => "Pa" , "factor" => 100), //milibar
"psi" => array("name" => "force per square inch" , "base" => "Pa" , "factor" => 6894.76), //pound-force per square inch
"tor" => array("name" => "torr" , "base" => "pa" , "factor" => 133.322), //torr
// unit of energy
"j" => array("name" => "joule" , "base" => "j" , "factor" => 1), //joule - base unit for energy
"kj" => array("name" => "kilojoule" , "base" => "j" , "factor" => 1000), //kilojoule
"mj" => array("name" => "megajoule" , "base" => "j" , "factor" => 1000000), //megajoule
"cal" => array("name" => "calorie" , "base" => "j" , "factor" => 4184), //calorie or kilocalorie
"whr" => array("name" => "watt hour" , "base" => "j" , "factor" => 3600), //watt hour
"kwhr" => array("name" => "kilowatt hour" , "base" => "j" , "factor" => 3600000), //kilowatt hour
"mwhr" => array("name" => "megawatt hour" , "base" => "j" , "factor" => 3600000000), //megawatt hour
"mev" => array("name" => "mega electron volt" , "base" => "j" , "factor" => 0.00000000000000016022), //mega electron volt
"tu" => array("name" => "british thermal unit" , "base" => "j" , "factor" => 1055.06), //british thermal unit
"Nm" => array("name" => "newton meter" , "base" => "j" , "factor" => 1), //newton meter
"ftlb" => array("name" => "foot pound" , "base" => "j" , "factor" => 1.35582), //foot pound
// unit of data storage
"b" => array("name" => "bit" , "base" => "bps" , "factor" => 1), //bit - base unit for data storage
"kb" => array("name" => "kilobit" , "base" => "bps" , "factor" => 1000), //kilobit
"kbb" => array("name" => "kibibit" , "base" => "bps" , "factor" => 1024), //kibibit
"mb" => array("name" => "megabit" , "base" => "bps" , "factor" => 1000000), //megabit
"mbb" => array("name" => "mebibit" , "base" => "bps" , "factor" => 1048000), //mebibit
"gb" => array("name" => "gigabit" , "base" => "bps" , "factor" => 1000000000), //gigabit
"gbb" => array("name" => "gibibit" , "base" => "bps" , "factor" => 1074000000), //gibibit
"tb" => array("name" => "terabit" , "base" => "bps" , "factor" => 1000000000000), //terabit
"tbb" => array("name" => "tebibit" , "base" => "bps" , "factor" => 1100000000000), //tebibit
"pb" => array("name" => "petabit" , "base" => "bps" , "factor" => 1000000000000000), //petabit
"pbb" => array("name" => "pebibit" , "base" => "bps" , "factor" => 1126000000000000), //pebibit
"B" => array("name" => "byte" , "base" => "bps" , "factor" => 8), //byte
"KB" => array("name" => "kilobyte" , "base" => "bps" , "factor" => 8000), //kilobyte
"KBB" => array("name" => "kibibyte" , "base" => "bps" , "factor" => 8192), //kibibyte
"MB" => array("name" => "megabyte" , "base" => "bps" , "factor" => 8000000), //megabyte
"MBB" => array("name" => "mebibyte" , "base" => "bps" , "factor" => 8389000), //mebibyte
"GB" => array("name" => "gigabyte" , "base" => "bps" , "factor" => 8000000000), //gigabyte
"GBB" => array("name" => "gibibyte" , "base" => "bps" , "factor" => 8590000000), //gibibyte
"TB" => array("name" => "terabyte" , "base" => "bps" , "factor" => 8000000000000), //terabyte
"TBB" => array("name" => "tebibyte" , "base" => "bps" , "factor" => 8796000000000), //tebibyte
"PB" => array("name" => "petaabyte" , "base" => "bps" , "factor" => 8000000000000000), //petaabyte
"PBB" => array("name" => "pebibyte" , "base" => "bps" , "factor" => 9.00700000000000), //pebibyte
// unit of frequency
"hz" => array("name" => "hertz" , "base" => "hz" , "factor" => 1), //hertz - base unit for frequency
"khz" => array("name" => "kilohertz" , "base" => "hz" , "factor" => 1000), //kilohertz
"mhz" => array("name" => "megahertz" , "base" => "hz" , "factor" => 1000000), //megahertz
"ghz" => array("name" => "gigahertz" , "base" => "hz" , "factor" => 1000000000), //gigahertz
);
}
// setup function
private function set($number,$from,$to){
if(is_numeric($number)){
$this->number=$number;
if(array_key_exists($from, $this->unit) && array_key_exists($to, $this->unit)){
if($this->unit[$from]["base"]==$this->unit[$to]["base"]){
$this->from=$this->unit[$from]["factor"];
$this->to=$this->unit[$to]["factor"];
}else{
throw new Exception("Cannot Convert Between Units of Different Types", 1);
}
}else{
throw new Exception("From or to parameter does not exist", 1);
}
}else{
throw new Exception("Invalid number input, number must be integer or decimal value", 1);
}
}
// function that convert the number from one unit to another
public function convert($number,$from,$to){
$this->set($number,$from,$to);
$output = ($this->number*$this->from)/$this->to;
return $output;
}
// for get all the existing unit data
public function getUnit($unit=""){
if($unit==""){
//return all unit
return json_encode($this->unit);
}else{
if(array_key_exists($unit, $this->unit)){
return json_encode($this->unit[$unit]);
}else{
throw new Exception("Sorry, this unit does not exist", 1);
}
}
}
// for insert a new unit data
public function putUnit($unit,$name,$base,$factor){
if(!array_key_exists($unit, $this->unit)){
if($unit!="" && $name!="" && $base!=""){
if(is_numeric($factor) && $factor!=0){
$this->unit[$unit]=array("name"=>$name, "base"=>$base, "factor"=>$factor);
}else{
throw new Exception("factor value must be integer/decimal and not equal to zero", 1);
}
}else{
throw new Exception("data must be not null", 1);
}
}else{
throw new Exception("Sorry, this unit is already exist. this unit cannot be added", 1);
}
}
// for update any existing unit data
public function setUnit($unit,$factor){
if(array_key_exists($unit, $this->unit)){
if($unit!=""){
if(is_numeric($factor) && $factor!=0){
$this->unit[$unit]["factor"]=$factor;
}else{
throw new Exception("factor value must be integer/decimal and not equal to zero", 1);
}
}else{
throw new Exception("unit value cannot be empty", 1);
}
}else{
throw new Exception("Sorry, the input unit value does not exist so cannot be updated", 1);
}
}
}
?>