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Package utils-value
Short Description Library to handle standard scalar values in PHP.
License Apache-2.0
Homepage https://github.com/cloudcreativity/utils-value
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Informations about the package utils-value
cloudcreativity/utils-value
A small library to handle scalar values that have meaning.
Values
It is common to handle scalar values that have particular meaning to your
application. For instance, if objects in your applications expect a string
that can only be one of several different string values - e.g. lead,
follow for describing dance roles - then any object that expects those values
would always have to check that the string received matches those two options.
For example:
This becomes highly repetitive - plus if you wanted to add either as a valid
value, you'd need to update it in every in_array() call across the
application.
This is where we'd use the CloudCreativity\Utils\Value\AbstractValue
class from this package. For example:
The original setter shown above would then become:
Helper Methods
Quite often we find it is useful for the value object to have helper methods. By implementing these on the value object, they become available to any part of your application that receives an instance of the value.
For instance, or DanceRole object could look like this:
Trait
If you do not want to extend the abstract class, the majority of methods are available via the ValueTrait.
Interface
This package defines an interface, ValueInterface, to ensure consistency across value objects:
__toString(): so that a scalar value can always be written to a string.toString(): so that a scalar value can fluently be cast to a string.jsonSerialize(): so that a scalar value can always be cast properly when being JSON encoded.get(): gets the underlying scalar value, e.g. would return a string if the value object holds a string.is(...$values): compares provided values to the underlying scalar value, returningtrueif the value matches any of them.
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