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<?php |
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/** |
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* PHPCoord. |
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* |
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* @author Doug Wright |
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*/ |
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declare(strict_types=1); |
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namespace PHPCoord\UnitOfMeasure\Time; |
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use PHPCoord\Exception\UnknownUnitOfMeasureException; |
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use PHPCoord\UnitOfMeasure\UnitOfMeasure; |
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abstract class Time implements UnitOfMeasure |
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{ |
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/** |
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* Year. |
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*/ |
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public const EPSG_YEAR = 'urn:ogc:def:uom:EPSG::1029'; |
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protected static array $sridData = [ |
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'urn:ogc:def:uom:EPSG::1029' => [ |
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'name' => 'year', |
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], |
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]; |
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protected static array $customSridData = []; |
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private static array $supportedCache = []; |
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abstract public function __construct(float $time); |
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abstract public function asYears(): Year; |
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public function add(self $unit): self |
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{ |
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if ($this::class === $unit::class) { |
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return new static($this->getValue() + $unit->getValue()); |
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} |
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$resultAsYears = new Year($this->asYears()->getValue() + $unit->asYears()->getValue()); |
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$conversionRatio = (new static(1))->asYears()->getValue(); |
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return new static($resultAsYears->getValue() / $conversionRatio); |
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} |
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public function subtract(self $unit): self |
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{ |
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if ($this::class === $unit::class) { |
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return new static($this->getValue() - $unit->getValue()); |
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} |
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$resultAsYears = new Year($this->asYears()->getValue() - $unit->asYears()->getValue()); |
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$conversionRatio = (new static(1))->asYears()->getValue(); |
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return new static($resultAsYears->getValue() / $conversionRatio); |
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} |
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public function multiply(float $multiplicand): self |
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{ |
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return new static($this->getValue() * $multiplicand); |
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} |
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public function divide(float $divisor): self |
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{ |
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return new static($this->getValue() / $divisor); |
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} |
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public static function makeUnit(float $measurement, string $srid): self |
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{ |
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if (isset(self::$customSridData[$srid])) { |
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return new self::$customSridData[$srid]['fqcn']($measurement); |
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} |
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return match ($srid) { |
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self::EPSG_YEAR => new Year($measurement), |
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default => throw new UnknownUnitOfMeasureException($srid), |
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}; |
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} |
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public static function getSupportedSRIDs(): array |
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{ |
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if (!self::$supportedCache) { |
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foreach (static::$sridData as $srid => $data) { |
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self::$supportedCache[$srid] = $data['name']; |
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} |
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} |
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return self::$supportedCache; |
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} |
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public static function registerCustomUnit(string $srid, string $name, string $implementingClassFQCN): void |
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{ |
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self::$customSridData[$srid] = ['name' => $name, 'fqcn' => $implementingClassFQCN]; |
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self::getSupportedSRIDs(); // init cache if not already |
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self::$supportedCache[$srid] = $name; // update cache |
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} |
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public function __toString(): string |
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{ |
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return (string) $this->getValue(); |
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} |
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} |
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dvdoug /
PHPCoord
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.