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<?php $input = array(); $result = array_pad($input, 10, ''); $res1=array('4'=>"dfdfd"); $result=array_merge($result,$res1); print_r($result);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => [1] => [2] => [3] => [4] => [5] => [6] => [7] => [8] => [9] => [10] => dfdfd )