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run code in 300+ PHP versions simultaneously
<?php class Foo { public function getFoo() { return "FOO!"; } } class Bar { protected function getClass() { return 'Foo'; } } $a = new Bar(); $b = new ${$a->getClass()}; var_dump($b->getFoo());
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Call to protected method Bar::getClass() from global scope in /in/gET5I:17 Stack trace: #0 {main} thrown in /in/gET5I on line 17
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Call to protected method Bar::getClass() from context '' in /in/gET5I:17 Stack trace: #0 {main} thrown in /in/gET5I on line 17
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to protected method Bar::getClass() from context '' in /in/gET5I on line 17
Process exited with code 255.

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