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Error Identifier: constructor.missingParentCall

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);

class ParentClass
{
	public function __construct()
	{
		// initialization logic
	}
}

class ChildClass extends ParentClass
{
	public function __construct(private string $name)
	{
		// missing parent::__construct() call
	}
}

Why is it reported? #

This rule is part of phpstan-strict-rules.

A child class defines its own constructor but does not call the parent class’s constructor. When a parent class has a constructor with initialization logic, failing to call it from the child constructor can leave the object in an inconsistent or uninitialized state.

In the example above, ChildClass::__construct() does not call parent::__construct(), so the initialization logic in ParentClass is skipped.

How to fix it #

Call the parent constructor from the child constructor:

 <?php declare(strict_types = 1);
 
 class ChildClass extends ParentClass
 {
 	public function __construct(private string $name)
 	{
-		// missing parent::__construct() call
+		parent::__construct();
 	}
 }

How to ignore this error #

You can use the identifier constructor.missingParentCall to ignore this error using a comment:

// @phpstan-ignore constructor.missingParentCall
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: constructor.missingParentCall

Rules that report this error #

• PHPStan\Rules\Classes\RequireParentConstructCallRule [1] phpstan/phpstan-strict-rules

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