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run code in 150+ php & hhvm versions
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<?php $array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red', 5 => 'green'); //unset($array[2]); print_r(array_pop($array));
Output for 4.3.0 - 7.1.0
green