Error Identifier: return.noParent

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

namespace App;

/**
 * @return parent
 */
function returnParent()
{
    // ...
}

Why is it reported? #

The parent keyword in PHP refers to the parent class of the current class. It can only be used inside a class that extends another class. When parent is used as a return type in a function (not a method), or in a class that does not extend any other class, it has no meaning because there is no parent class to refer to.

How to fix it #

Replace parent with the actual class name that was intended:

 <?php declare(strict_types = 1);
 
 namespace App;

-/**
- * @return parent
- */
-function returnParent()
+function returnParent(): SomeClass
 {
     // ...
 }

If the code is in a class that should have a parent, add the extends clause:

 <?php declare(strict_types = 1);
 
 namespace App;

-class MyClass
+class MyClass extends BaseClass
 {
     public function create(): parent
     {
         return new BaseClass();
     }
 }

How to ignore this error #

You can use the identifier return.noParent to ignore this error using a comment:

// @phpstan-ignore return.noParent
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: return.noParent

Rules that report this error #

PHPStan\Rules\Functions\ExistingClassesInArrowFunctionTypehintsRule [1]
PHPStan\Rules\Functions\ExistingClassesInClosureTypehintsRule [1]
PHPStan\Rules\Functions\ExistingClassesInTypehintsRule [1]
PHPStan\Rules\Methods\ExistingClassesInTypehintsRule [1]
PHPStan\Rules\Properties\ExistingClassesInPropertyHookTypehintsRule [1]

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