Error Identifier: method.deprecatedTrait
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);
/** @deprecated Use NewHelper instead */
trait OldHelper
{
public function help(): void
{
}
}
class Foo
{
use OldHelper;
}
function doFoo(Foo $foo): void
{
$foo->help(); // ERROR: Call to method help() of deprecated trait OldHelper.
}
Why is it reported? #
This error is reported by phpstan/phpstan-deprecation-rules.
The method being called is declared in a trait that has been marked as deprecated with the @deprecated PHPDoc tag. Even though the method itself may not be deprecated, calling it through a class that uses a deprecated trait signals usage of deprecated functionality. The deprecation notice typically suggests a replacement to use instead.
How to fix it #
Replace the usage of the deprecated trait with the suggested replacement:
<?php declare(strict_types = 1);
class Foo
{
- use OldHelper;
+ use NewHelper;
}
Or call a method from a non-deprecated source if one is available.
How to ignore this error #
You can use the identifier method.deprecatedTrait to ignore this error using a comment:
// @phpstan-ignore method.deprecatedTrait
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: method.deprecatedTrait