i need to define class constant dynamically because i want the value to be cant be modified after it defined it need to be defined at runtime and not at the php code class definition because the value change every runtime and the value are created through class method is this possible?

what i mean with create static property is like setStatic and getStatic because set and get works only in object context https://softwareengineering.stackexchange.com/questions/140679/why-is-there-no-facility-to-overload-static-properties-in-php can you provide an example of creating and changing static properties