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<?php $array= [[1], [2], [3], [4], [5], [6], [7], [8], [9]]; foreach($array as $value) { unset($value); } print_r($array);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => 1 ) [1] => Array ( [0] => 2 ) [2] => Array ( [0] => 3 ) [3] => Array ( [0] => 4 ) [4] => Array ( [0] => 5 ) [5] => Array ( [0] => 6 ) [6] => Array ( [0] => 7 ) [7] => Array ( [0] => 8 ) [8] => Array ( [0] => 9 ) )

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