删除查询受影响的行返回大于0或DB中没有记录

Question

this is a piece of code

    public static function delete_ques($ques_id) {
        $con = Connection::get_Connection();
        $sql_delete = "DELETE FROM question WHERE ques_id = " . $ques_id;
        $result_delete = $con->query($sql_delete);
        if ($result_delete->rowCount()) {
            $con->close();
            echo 'hell not ';
            return true;
        } else {
            $con->close();
            echo 'hell yes';
            return false;
        }
    }

i cannot figure it out why its happening

Answer 1

The problem you are facing is because of rowCount() . according to php.net

rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement executed by the corresponding PDOStatement object .

In your situation i would use affected_rows. So you if-else code block would be like this

if ($con->affected_rows) {
        $con->close();
        echo 'hell not ';
        return true;
} else {
        $con->close();
        echo 'hell yes';
        return false;
}