php codeigniter select results from foreach and save into an array -

i have php mysql query results following...

array (     [0] => stdclass object         (             [id] => 52             [sku] =>              [name] => stone product 52     )     [1] => stdclass object         (             [id] => 53             [sku] =>              [name] => stone product 53     )      .        .     .     )  array (     [0] => stdclass object         (             [id] => 12             [sku] =>              [name] => stone product 12     )     [1] => stdclass object         (             [id] => 13             [sku] =>              [name] => stone product 13     )      .        .     .     ) 

and want results below

array(     [0] => stdclass object         (             [id] => 52             [sku] =>              [name] => stone product 52     )       [1] => stdclass object         (             [id] => 53             [sku] =>              [name] => stone product 53     )      [2] => stdclass object         (             [id] => 12             [sku] =>              [name] => stone product 12     )      [3] => stdclass object         (             [id] => 13             [sku] =>              [name] => stone product 13     ) 

in single array

please suggest me php code

you should not joining these results in php. use one query both sets of results, cut down on db reads.