MySQL How to prepare statement for update query?

다음 코드가있는 mysqli 쿼리가 있습니다.

$db_usag->query("UPDATE Applicant SET phone_number ='$phone_number', 
street_name='$street_name', city='$city', county='$county', zip_code='$zip_code', day_date='$day_date', month_date='$month_date',
 year_date='$year_date' WHERE account_id='$account_id'");

 

해결 방법

 

UPDATE 는 삽입 또는 선택과 동일하게 작동합니다. 모든 변수를 ? 로 바꾸십시오.

$sql = "UPDATE Applicant SET phone_number=?, street_name=?, city=?, county=?, zip_code=?, day_date=?, month_date=?, year_date=? WHERE account_id=?";

$stmt = $db_usag->prepare($sql);

// This assumes the date and account_id parameters are integers `d` and the rest are strings `s`
// So that's 5 consecutive string params and then 4 integer params

$stmt->bind_param('sssssdddd', $phone_number, $street_name, $city, $county, $zip_code, $day_date, $month_date, $year_date, $account_id);
$stmt->execute();

if ($stmt->error) {
  echo "FAILURE!!! " . $stmt->error;
}
else echo "Updated {$stmt->affected_rows} rows";

$stmt->close();

 

참조 페이지 https://stackoverflow.com/questions/6514649