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run code in 150+ php & hhvm versions
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<?php $array = array(' ', ' foo bar '); $array = array_filter(array_map('trim', $array)); var_dump($array);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(1) { [1]=> string(7) "foo bar" }