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run code in 300+ PHP versions simultaneously
<?php function foo() : object { return null; } try { echo foo(); } catch (\EngineException $e) { var_dump($e); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: foo(): Return value must be of type object, null returned in /in/iIdEG:4 Stack trace: #0 /in/iIdEG(8): foo() #1 {main} thrown in /in/iIdEG on line 4
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Return value of foo() must be an object, null returned in /in/iIdEG:4 Stack trace: #0 /in/iIdEG(8): foo() #1 {main} thrown in /in/iIdEG on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Fatal error: Uncaught TypeError: Return value of foo() must be an instance of object, null returned in /in/iIdEG:4 Stack trace: #0 /in/iIdEG(8): foo() #1 {main} thrown in /in/iIdEG on line 4
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/iIdEG on line 3
Process exited with code 255.

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