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run code in 150+ php & hhvm versions
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<?php $dir = '/tmp'; $files1 = scandir($dir); print_r($files1); ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Array ( [0] => . [1] => .. )
Output for hhvm-3.12.0
Array ( [0] => . [1] => .. [2] => perf-2629.map )
Output for hhvm-3.10.0
Array ( [0] => . [1] => .. [2] => perf-2641.map )