array's key match with another array php -

ex :

first array:

array (     [0] => id     [1] => address     [2] => address1     [3] => name ) 

second array:

array (     [id] => 1     [name] => ankit     [city] => surat ) 

required output :

    [id] => 1     [address]=>     [address1]=>     [name] => ankit 

here can see value of first array address,address1 doesn't exist in array 2 key, need value set null address,address1 , unnecessary field of array 2 city key doesn't exist in first array values need unset result array

code :

    $field_arr= array('0'=>"id",         "1"=>"address",         "2"=>"address1",         '3'=>"name",         );     $arr=array("id"=>"1",         'name'=>"ankit",         "city"=>"ahmedabad");     $matching_fields =(array_diff_key(array_flip($field_arr),(array_intersect_key($arr,array_flip($field_arr)))));     if(!empty($matching_fields)){         foreach($matching_fields $key=>$value){             $new_arr[$key]=null;         }     }     print_r($new_arr);     exit; 

current output of new array :

array (     [address] =>      [address1] =>  ) 

but long process.as performance matter. want whole code reconstruct have made , output required output

here more need need want same sequence of key of output array same first array value

 required output  :         [id] => 1         [address]=>         [address1]=>         [name] => ankit  current output :         [id] => 1         [name] => ankit         [address]=>         [address1]=> 

thanks in advance

just try with:

$keys = array('id', 'name', 'address', 'address1'); $data = array(   'id'   => 1,   'name' => 'ankit',   'city' => 'surat', );   $output = $data + array_fill_keys($keys, null); 

output:

array (size=5)   'id' => int 1   'name' => string 'ankit' (length=5)   'city' => string 'surat' (length=5)   'address' => null   'address1' => null