PHP compare two arrays of objects

Let's use the function array_intersect - which returns the matches for the values ​​in the arrays. First you need to get rid of objects in arrays. For each array, do so

 $arr1 = array(); foreach($arr_source_1 as $o) { $arr1[] = $o->login; } 

similarly, we get $ arr2 for the second array

Next we find the intersection of these arrays

 $arr_int = array_intersect($arr1, $arr2); 

and form the resulting array

 $arr_res = array(); foreach ($arr_int as $v) { $o = new stdClass(); $o->login = $v; $arr_res[] = $o; }