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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 8.5.0
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}
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
Fatal error: Declaration of DrupalGetInterfaceTest::drupalGet(string $url): void must be compatible with DrupalGetInterface::drupalGet(string $url): string in /in/f43o4 on line 7
Process exited with code 255.

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