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run code in 300+ PHP versions simultaneously
<?php class Foo {} define('FOOx', new Foo()); FOOx;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: define(): Argument #2 ($value) cannot be an object, Foo given in /in/M48oD:5 Stack trace: #0 /in/M48oD(5): define('FOOx', Object(Foo)) #1 {main} thrown in /in/M48oD on line 5
Process exited with code 255.
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Constants may only evaluate to scalar values, arrays or resources in /in/M48oD on line 5 Warning: Use of undefined constant FOOx - assumed 'FOOx' (this will throw an Error in a future version of PHP) in /in/M48oD on line 7
Output for 7.2.0 - 7.2.33
Warning: Constants may only evaluate to scalar values or arrays in /in/M48oD on line 5 Warning: Use of undefined constant FOOx - assumed 'FOOx' (this will throw an Error in a future version of PHP) in /in/M48oD on line 7
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Warning: Constants may only evaluate to scalar values or arrays in /in/M48oD on line 5 Notice: Use of undefined constant FOOx - assumed 'FOOx' in /in/M48oD on line 7
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Warning: Constants may only evaluate to scalar values in /in/M48oD on line 5 Notice: Use of undefined constant FOOx - assumed 'FOOx' in /in/M48oD on line 7

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