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run code in 300+ PHP versions simultaneously
<?php namespace A { class B {} namespace D { class C {} } }
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.21
Fatal error: Namespace declarations cannot be nested in /in/B3TN5 on line 5
Process exited with code 255.
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167.39 ms | 1399 KiB | 57 Q