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run code in 300+ PHP versions simultaneously
<?php new CallbackFilterIterator('','phpinfo');
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 TypeError: CallbackFilterIterator::__construct(): Argument #1 ($iterator) must be of type Iterator, string given in /in/rYqHD:2 Stack trace: #0 /in/rYqHD(2): CallbackFilterIterator->__construct('', 'phpinfo') #1 {main} thrown in /in/rYqHD on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 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 TypeError: Argument 1 passed to CallbackFilterIterator::__construct() must implement interface Iterator, string given in /in/rYqHD:2 Stack trace: #0 /in/rYqHD(2): CallbackFilterIterator->__construct('', 'phpinfo') #1 {main} thrown in /in/rYqHD on line 2
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Catchable fatal error: Argument 1 passed to CallbackFilterIterator::__construct() must implement interface Iterator, string given in /in/rYqHD on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Class 'CallbackFilterIterator' not found in /in/rYqHD on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: callbackfilteriterator in /in/rYqHD on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: callbackfilteriterator in /in/rYqHD on line 2

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