PHP team released their PHP 8.1 version and in this version they add some new features like never return type is one of them. In this tutorial, I will discuss about PHP never return type. This can be good for you so that I am going to show you what never the return type is.
In PHP 8.1, never is a new return type indicates that it will never return a value, and always throws an exception or terminates with a die/exit call.
We know that we can not return something from a method if we declare it as a void. In other words, a function/method declared never must not call return at all, even in the return; only. Take a look at some examples of PHP never return type:
function foo(): never {
return;
}
foo()
If we execute this code then it will generate a fatal error like:
Take a look at another example:
function foo(never $a) {}
Using never as a class property type causes a similar fatal error:
class Foo {
private never $bar;
}
With never in a Union Type is not allowed. This is similar to how the void type is enforced as well.
function foo(): never|string {}
Read also: Don't use if else ladder in php rather use this method
Hope it can help you.
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