PHP code example of khaledalam / unit

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

khaledalam / unit example snippets

use KhaledAlam\Unit\Quantity;

echo Quantity::of(2, 'm')->add(Quantity::of(100, 'cm'))->to('m'); // "3 m"
echo Quantity::of(100, '°C')->to('°F')->format(1);                // "212.0 °F"
echo Quantity::of(4, 'm')->multiply(Quantity::of(3, 'm'));        // "12 m²"

KhaledAlam\Unit\Quantity;

// Common units are auto-registered — just use them.
$length1 = Quantity::of(2.0, 'm');
$length2 = Quantity::of(100.0, 'cm');

$sum = $length1->add($length2); // auto-converts cm -> m
echo $sum->to('m');             // "3 m"

echo Quantity::of(2, 'm')->to('cm');   // "200 cm"
echo Quantity::of(5, 'km')->to('m');   // "5000 m"
echo Quantity::of(1, 'h')->to('s');    // "3600 s"

$speed = Quantity::of(10, 'm')->divide(Quantity::of(2, 's')); // "5 m/s"
$area  = Quantity::of(2, 'm')->multiply(Quantity::of(3, 'm')); // "6 m²"

echo Quantity::of(5, 'm')->times(3);      // "15 m"
echo Quantity::of(10, 'm')->dividedBy(4); // "2.5 m"
echo Quantity::of(2, 'm')->pow(2);        // "4 m²"
echo Quantity::of(4, 'm²')->sqrt();       // "2 m"
echo Quantity::of(-3, 'm')->abs();        // "3 m"

Quantity::of(1, 'm/s')->dimensionName(); // "velocity"
Quantity::of(1, 'N')->dimensionName();   // "force"
Quantity::of(1, 'Pa')->dimensionName();  // "pressure"

echo Quantity::of(100, '°C')->to('°F')->format(1); // "212.0 °F"
echo Quantity::of(32, '°F')->to('°C')->format(1);  // "0.0 °C"
echo Quantity::of(25, '°C')->to('K')->format(2);   // "298.15 K"

echo Quantity::parse('100 km/h')->to('mph')->format(2); // "62.14 mph"
echo Quantity::parse('-40 °C')->to('°F')->format(1);    // "-40.0 °F"
echo Quantity::parse('5 ft 3 in')->to('cm')->format(2); // "160.02 cm"  (segments summed)

echo Quantity::of(1500, 'm')->humanize();        // "1.5 km"
echo Quantity::of(2500000, 'B')->humanize();     // "2.5 MB"
echo Quantity::of(5400, 's')->humanize();        // "1.5 h"

Quantity::of(1, 'm')->isGreaterThan(Quantity::of(90, 'cm')); // true
Quantity::of(1, 'm')->equals(Quantity::of(100, 'cm'));       // true

echo Quantity::of(1, 'm')->divide(Quantity::of(3, 's'))->format(2); // "0.33 m/s"

echo json_encode(Quantity::of(2, 'm')); // {"value":2,"unit":"m"}

use KhaledAlam\Unit\{Unit, Name, Dimension, UnitRegistry};

UnitRegistry::register(new Unit('yard', 'yd', 0.9144, new Dimension(['L' => 1])));

echo Quantity::of(1, 'yd')->to('m'); // "0.9144 m"

Quantity::of(5, 'kg')->add(Quantity::of(3, 's')); // InvalidArgumentException

use Illuminate\Database\Eloquent\Model;
use KhaledAlam\Unit\Laravel\AsQuantity;

class Parcel extends Model
{
    protected function casts(): array
    {
        return ['weight' => AsQuantity::class];
    }
}

$parcel->weight = Quantity::of(2.5, 'kg'); // stored as "2.5 kg"
$parcel->weight->to('g');                   // 2500 g
$parcel->weight = '5 ft 3 in';              // strings are parsed on the way in

return [
    'units' => [
        new \KhaledAlam\Unit\Unit('furlong', 'fur', 201.168, new \KhaledAlam\Unit\Dimension(['L' => 1])),
    ],
];

use Doctrine\DBAL\Types\Type;
use KhaledAlam\Unit\Doctrine\QuantityType;

Type::addType(QuantityType::NAME, QuantityType::class); // e.g. in a bundle boot / bootstrap

use Doctrine\ORM\Mapping as ORM;

#[ORM\Column(type: 'quantity', nullable: true)]
public ?Quantity $weight = null;

bash
php examples/basic.php
php examples/temperature.php
php examples/parse-and-humanize.php
php examples/scalar-math.php
php examples/shipping.php
php examples/physics.php