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ServiceId.md

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Class ServiceId

The ServiceId class implements the Stringable interface and represents a service ID. It has a single private property $value which holds the value of the service ID and a constructor that sets the value of $value upon instantiation. The class also has a __toString() method that returns the string representation of the ServiceId object.

Constructor

__construct(string $serviceId): void

The constructor takes in a single parameter $serviceId of type string. It validates if the string is a valid 8-digit hexadecimal number and throws an InvalidArgumentException if it is not. If the string is valid, it sets the value to the $value property.

Methods

__toString(): string

The __toString() method returns the string representation of the ServiceId object.

Example Usage

$serviceId = new ServiceId('12345678');
echo $serviceId;

// Output: 12345678