staticMethod.deprecatedTrait

Code example

<?php declare(strict_types = 1);

/** @deprecated Use NewHelper instead */
trait OldHelper
{
	public static function compute(): int
	{
		return 42;
	}
}

class MyClass
{
	use OldHelper;
}

function doFoo(): void
{
	OldHelper::compute();
}

Why is it reported?

This error is reported by the phpstan-deprecation-rules extension.

A static method is being called on a trait that is marked as @deprecated. Deprecated traits are scheduled for removal or replacement. Calling static methods on them ties the code to an API that will eventually be removed.

How to fix it

Use the recommended replacement trait or class instead:

 <?php declare(strict_types = 1);

 function doFoo(): void
 {
-	OldHelper::compute();
+	NewHelper::compute();
 }

If the calling code is itself deprecated, the error will not be reported. Mark the function or class as deprecated if it is part of a deprecation migration:

 <?php declare(strict_types = 1);

+/** @deprecated */
 function doFoo(): void
 {
 	OldHelper::compute();
 }