Online PHP editor | output for CtOFm

<?php $array1 = [ (object) [ "mem_tbl_id" => 1, "m_name_e" => "Titus C.", "member_id" => "KZI37M3025", "gender" => "Male", "m_number" => 9489455057, "familyid" => "KZI54F2256" ], (object) [ "mem_tbl_id" => 2, "m_name_e" => "Baby Helen", "member_id" => "KZI45M6402", "gender" => "Female", "m_number" => null, "familyid" => "KZI54F2256" ], (object) [ "mem_tbl_id" => 3, "m_name_e" => "Satheesh Premananth T.", "member_id" => "KZI69M3438", "gender" => "Male", "m_number" => null, "familyid" => "KZI69F5619" ] ]; $array2 = [ (object) [ "mem_tbl_id" => 1, "do_birth" => "1937-09-18" ], (object) [ "mem_tbl_id" => 2, "do_birth" => "1945-02-06" ], (object) [ "mem_tbl_id" => 3, "do_birth" => "1968-04-12" ] ]; $array3 = [ (object) [ "mem_tbl_id" => 3, "do_baptism" => "1969-04-13" ] ]; $array4 = [ (object) [ "mem_tbl_id" => 1, "do_confirm" => "1954-04-07" ], (object) [ "mem_tbl_id" => 3, "do_confirm" => "1990-04-29" ] ]; $result = []; foreach ([$array1, $array2, $array3, $array4] as $objectArray) { foreach ($objectArray as $obj) { if (!isset($ref[$obj->mem_tbl_id])) { $ref[$obj->mem_tbl_id] = $obj; $result[] = $ref[$obj->mem_tbl_id]; } else { foreach ($obj as $prop => $val) { $ref[$obj->mem_tbl_id]->$prop = $val; } } } } var_export($result);