compare values in 2 array

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Hi all ,

I am using PHP 4.3.2 and MYSQL DB.

I need to compare values in array which populated by database , below is 
the code :

$temp_tbl = array();
while ($row = $temptbl_result->fetchRow(DB_FETCHMODE_ASSOC)){
	  $rs_chasis_serialno = $row['serial_no'];
	  $rs_card_serial_no = $row['card_serial_no'];
          $rs_country = $row['country'];
          $status = $row['status'];
	  $temp_tbl[] = array("chassis_serial_no"=>$rs_chasis_serialno,
	                      "card_serial_no"=>$rs_card_serial_no,
                              "country"=>country
                              "status"=>status);
}

$current_tbl = array();
while ($row = $currenttbl_result->fetchRow(DB_FETCHMODE_ASSOC)){
	  $rs_chasis_serialno = $row['serial_no'];
	  $rs_card_serial_no = $row['card_serial_no'];
          $rs_country = $row['country'];
	  $current_tbl[] = array("chassis_serial_no"=>$rs_chasis_serialno,
	                      "card_serial_no"=>$rs_card_serial_no,
                               "country"=>country);
}

--> need to compare $temp_tbl array and $current_tbl array.
--> if values is different between 2 array , need to update the status 
field in the $temp_tbl array.

Anybody have any suggestion how to do this ?
Thanks

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