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<?php $list = ['a', 'b', 'c', 'd']; array_walk($list, function ($item) use($list) { array_walk($list, function ($inner) use ($item) { if ($inner == $item) { continue; } echo $ietm, ' ', $inner, PHP_EOL; }) });
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17, 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '}' in /in/dMs92 on line 12
Process exited with code 255.

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