error of bind parameter in php mysqli statement - 


$statement= mysqli_prepare( $this->mysqli,'update empdata set name=?,                              email=?,                             phonenumber = ?,                              addressline1 =?,                                       addressline2 =?,                              cityid =?,                              zip = ?,                              modifiedon = now()                             id = ?'); mysqli_stmt_bind_param($statement, 'sssssisi', trim($name),                          trim($email),                          trim(phnumber),                          trim(address1),                          trim(address2),                          $city=2,                          trim($zipcode),                          $id); mysqli_stmt_execute($statement);

the query gives me error on server strict standards: value pass reference on line used trim , $city=2

locally runs fine, on server gives me above error?

is way write these query using mysqli?


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