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<?php $f = function($v, $k, $i) { return false === substr($v, 'Exception'); }; var_dump(new CallbackFilterIterator(new ArrayIterator(get_declared_classes())),$f);
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 ArgumentCountError: CallbackFilterIterator::__construct() expects exactly 2 arguments, 1 given in /in/TVYlc:6 Stack trace: #0 /in/TVYlc(6): CallbackFilterIterator->__construct(Object(ArrayIterator)) #1 {main} thrown in /in/TVYlc on line 6
Process exited with code 255.
Output for 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 ArgumentCountError: CallbackFilterIterator::__construct() expects exactly 2 parameters, 1 given in /in/TVYlc:6 Stack trace: #0 /in/TVYlc(6): CallbackFilterIterator->__construct(Object(ArrayIterator)) #1 {main} thrown in /in/TVYlc on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Fatal error: Uncaught TypeError: CallbackFilterIterator::__construct() expects exactly 2 parameters, 1 given in /in/TVYlc:6 Stack trace: #0 /in/TVYlc(6): CallbackFilterIterator->__construct(Object(ArrayIterator)) #1 {main} thrown in /in/TVYlc on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'CallbackFilterIterator::__construct() expects exactly 2 parameters, 1 given' in /in/TVYlc:6 Stack trace: #0 /in/TVYlc(6): CallbackFilterIterator->__construct(Object(ArrayIterator)) #1 {main} thrown in /in/TVYlc on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Class 'CallbackFilterIterator' not found in /in/TVYlc on line 6
Process exited with code 255.
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/TVYlc on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION in <b>/in/TVYlc</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION in <b>/in/TVYlc</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/TVYlc</b> on line <b>3</b><br />
Process exited with code 255.

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