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<?php $select_option=array(array("id"=>"","val"=>"")); $combo_arr= @array_merge($select_option,$combo_arr); print_r($combo_arr);
Output for 5.0.0 - 5.6.25, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 4.3.0 - 4.4.9
Array ( [0] => Array ( [id] => [val] => ) )