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<?php declare(strict_types=1); trait UiHelperTrait { public function drupalGet(string $url): void { return; } } interface DrupalGetInterface { public function drupalGet(string $url): string; } class DrupalGetInterfaceTest implements DrupalGetInterface { use UiHelperTrait; } $test = new OverrideTraitMethodSignatureInChildClassTest(); var_dump($test->drupalGet('https://drupal.org'));
Output for 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26
Fatal error: Declaration of DrupalGetInterfaceTest::drupalGet(string $url): void must be compatible with DrupalGetInterface::drupalGet(string $url): string in /in/f43o4 on line 7
Output for 8.5.0 - 8.5.11
Fatal error: Declaration of DrupalGetInterfaceTest::drupalGet(string $url): void must be compatible with DrupalGetInterface::drupalGet(string $url): string in /in/f43o4 on line 7 Stack trace: #0 {main}
preferences:
30.4 ms | 1140 KiB | 9 Q