使用PDO时使用MySQL时出现奇怪的错误

时间:2016-08-22 18:28:17

标签: php mysql sql

我今天遇到了一个非常奇怪的错误。

,我因为这样做很糟糕,因为它破坏了我的整个申请。

所以,我有一个这个小框架,我已经建立了一个标准模式,所以这个片段有点冗长和描述性。

<?php include('inc/inc.php'); ?>
<?php
if(!empty($_POST['answer']) && !empty($_POST['levelstart'])){
  if($stmt = $site->answerQuestion($_POST['levelstart'],     $_POST['answer'])){
    if($stmt[0]){
      echo json_encode(array('success' => true, 'correct' => $stmt[1], 'correctanswer' => $stmt[2], 'round_end' => $stmt[3]));
    }else{
      echo json_encode(array('success' => false, 'error' => 'error occurred'.$stmt[1]));
    }
   }else{
     echo json_encode(array('sucess' => false, 'error' => 'Unknown error'));
   }
}else{
   echo json_encode(array('success' => false, 'error' => 'Provide all necessary parameters.'));
}
?>

这段代码输出如下。

INSERT INTO quiz_level_starts (`user_id`, `question_id`, `time`, `round_id`, `type`, `success`, `ref_id`) VALUES ('4', '10', '1471887809', '', '1', '1', '905'){"success":false,"error":"error occurred23000"}

上面生成的查询只是一个虚拟的,我简单地放在一起所以我不需要参数化来简单测试。 &#34;错误&#34; json数组中的键包含错误数据,并将错误代码转储到那里。 23000是有重复唯一列的mysql错误代码,但我没有在查询中使用的唯一列(请参阅下面的表结构。)

由于函数answerQuestion很长,我只会粘贴相关的行。在$ site-&gt; answerQuestion中,它调用一个名为&#34; insertLevelStarts&#34;的函数。应该在数据库中插入一个条目。 这就是我所说的:

if($stmtss = $this->db->insertLevelStarts($_SESSION['user']['id'], $stmts['return'][0]['id'], time(), $roundid, 1, 1, $levelstart)){

这就是它的声明方式,以及相关和未知代码的其余部分:

public function insertLevelStarts($user_id, $question_id, $time, $round_id, $type = 0, $success = 0, $refid = 0){
  /*
  Type=0 start 1 stop
  success=0 for start 1 if successfull on stop
  */
  $query = 'INSERT INTO quiz_level_starts (`user_id`, `question_id`, `time`, `round_id`, `type`, `success`, `ref_id`) VALUES (:user_id, :question_id, :time, :round_id, :type, :success, :refid)';
  echo $this->genFakeQuery($query, array(
      ':user_id' => $user_id,
      ':question_id' => $question_id,
      ':time' => $time,
      ':type' => $type,
      ':success' => $success,
      ':refid' => $refid,
      ':round_id' => $round_id
    ));
  return $this->execInsert($query, array(
      ':user_id' => $user_id,
      ':question_id' => $question_id,
      ':time' => $time,
      ':type' => $type,
      ':success' => $success,
      ':refid' => $refid,
      ':round_id' => $round_id
    )
  );
}
public function genFakeQuery($query, $array){
  foreach($array as $key => $val){
    $query = str_replace($key, "'$val'", $query);
  }
  return $query;
}
public function execUpdate($query, $preparray, $updatearr){
  try {
      $stmt = $this->db->prepare($query);
      $stmt->execute(array_merge($preparray, $updatearr));
      $rows = $stmt->rowCount();
      if($rows > 0){
          return array('type' => 'rowsaffected', 'return' => $rows);
      }else{
          return array('type' => 'noreturn', 'return' => 'none');
      }
  } catch(PDOException $ex) {
      return array('type' => 'error', 'return' => $ex);
  }
}
public function updateClause($query, $update, $updatearr){
  if(count($update) > 0){
    $count = 0;
    foreach($update as $k => $v){
      if($count > 0){
        $query .= ',';
      }
      $query .= " `$k` = :$k";
      $updatearr[":$k"] = $v;
      $count++;
    }
  }
  return array('query' => $query, 'updatearr' => $updatearr);
}

上述查询

INSERT INTO quiz_level_starts (`user_id`, `question_id`, `time`, `round_id`, `type`, `success`, `ref_id`) VALUES ('4', '10', '1471887809', '', '1', '1', '905')

插入到表中,如下所示:

CREATE TABLE IF NOT EXISTS `quiz_level_starts` (
`id` int(11) NOT NULL,
`user_id` int(11) NOT NULL,
`question_id` int(11) NOT NULL,
`time` int(11) NOT NULL,
`type` int(11) NOT NULL,
`success` int(11) NOT NULL,
`ref_id` int(11) NOT NULL,
`round_id` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
ALTER TABLE `quiz_level_starts`
 ADD PRIMARY KEY (`id`);
ALTER TABLE `quiz_level_starts`
 MODIFY `id` int(11) NOT NULL AUTO_INCREMENT;

将极大地帮助收到任何帮助。

1 个答案:

答案 0 :(得分:0)

我认为发生错误是因为round_id是一个整数字段,不能为NULL并且没有默认值,而是传递一个空值。 尝试此查询是否有效:

INSERT INTO quiz_level_starts (`user_id`, `question_id`, `time`, `round_id`, `type`, `success`, `ref_id`) VALUES ('4', '10', '1471887809', '0', '1', '1', '905')