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run code in 150+ php & hhvm versions
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<?php $s = " first second third "; var_dump(explode("\n", $s));
based on a7DbY
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(5) { [0]=> string(0) "" [1]=> string(5) "first" [2]=> string(6) "second" [3]=> string(5) "third" [4]=> string(0) "" }