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run code in 300+ PHP versions simultaneously
<?php namespace Foo { class Bar {} }; namespace Foo\Baz { class Qux {} } namespace { use Foo as F; use F\Baz; new Baz\Qux; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Class "F\Baz\Qux" not found in /in/0seJD:20 Stack trace: #0 {main} thrown in /in/0seJD on line 20
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Class 'F\Baz\Qux' not found in /in/0seJD:20 Stack trace: #0 {main} thrown in /in/0seJD on line 20
Process exited with code 255.
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: No code may exist outside of namespace {} in /in/0seJD on line 7
Process exited with code 255.

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