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run code in 200+ php & hhvm versions
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<?php function print_lines(Traversable $iterable) { foreach ($iterable as $value) { echo $value . PHP_EOL; } } print_lines(['foo', 'bar']);
based on i3tUB
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Argument 1 passed to print_lines() must implement interface Traversable, array given, called in /in/KcvF8 on line 10 and defined in /in/KcvF8:3 Stack trace: #0 /in/KcvF8(10): print_lines(Array) #1 {main} thrown in /in/KcvF8 on line 3
Process exited with code 255.
Output for 5.4.12 - 5.6.28
Catchable fatal error: Argument 1 passed to print_lines() must implement interface Traversable, array given, called in /in/KcvF8 on line 10 and defined in /in/KcvF8 on line 3
Process exited with code 255.
Output for 5.3.22 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/KcvF8 on line 10
Process exited with code 255.