how to use in_array

[omerbutt]

hi i need to compare a value inside the array that is returned via recordset from database

Array
(
    [0] => Array
        (
            [email] => [e-mail]
        )
 
    [1] => Array
        (
            [email] => [e-mail]
        )
 
)
 

i am trying to use in_array() to search inside the array but in_array() doesnt seem to do so here is the code

$email=$this->input->post('email');
if(in_array($email,$newsletter_array)){
            echo 'yes';
        }else{
            echo 'no';
        }
 

i have tried using it this way too

if(in_array(array(array('email'=>$email)),$newsletter_array)){
            echo 'yes';
        }else{
            echo 'no';
        }
 

what am i doing wrong
regards,
Omer Aslam

[omerbutt]

i did it by using the following method

function array_value_recursive($key, array $arr){
        $val = array();
        @array_walk_recursive($arr, function($v, $k) use($key, &$val){ if($k == $key) array_push($val, $v);});
        return count($val) > 1 ? $val : array_pop($val);
    }
$new_array=array_value_recursive('email',$newsletter_array);
 
            if(in_array($email,$new_array)){
echo 'matched';
}else{
echo 'not found';
}
 

regards,
Omer Aslam