嗨,所以我知道这似乎已经在这里得到了回答,但我尝试过的任何方法都没有奏效。基本上我要做的是调用一个插入一些数据的存储过程,并返回刚刚插入的 auto_increment 的 id。然后该语句关闭,我保留该 ID。
然后有趣的部分发生了。我进入一个循环,对于循环的每个实例,我需要调用另一个存储过程来插入一些数据,并返回最后一个 auto_increment 的 id。然后我会使用那个 id 去做更多的事情。但是,现在它在循环中失败了。它第一次执行没有问题,然后在准备下一次运行时它给了我错误Commands out of sync; you can't run this command now
。
我真的尝试过以某种方式从第一次使用 stmt->free() 时释放结果,但这没有用,或者释放 mysqli2 连接,但此时我所做的任何事情都没有奏效。任何提示或提示将不胜感激!
$insert_questionnaire_sql = "CALL insert_questionnaire_info(?, ?, ?, ?, ?, ?, ?)";
$questionnaire_insert_stmt = $mysqli->prepare($insert_questionnaire_sql);
$questionnaire_insert_stmt->bind_param("ssisiis", $meta[0], $meta[4], $length_of_questions, $user, $meta[2], $meta[3], $meta[1]);
//execute the statement
$success = $questionnaire_insert_stmt->execute();
$qn_id = -1;
//bind the id of the questionnaire that was just inserted
$questionnaire_insert_stmt->bind_result($qn_id);
//fetch the id
$questionnaire_insert_stmt->fetch();
//close the statement
$questionnaire_insert_stmt->close();
//next we insert each question into the database
$i = 0;
for($i; $i < count($Questions); $i++){
//only if the question has been submitted
if($Questions[$i]->submitted){
//prepare the statement
$insert_question_sql = "CALL insert_question_info(?, ?, ?, ?, ?, ?, ?)";
$question_insert_stmt = $mysqli2->prepare($insert_question_sql) or die ($mysqli2->error);
$type = -1;
$width = -1;
$height = -1;
//count the number of answers
$numAnswers = countNotDeletedAnswers($Questions[$i]);
$text = $Questions[$i]->text;
//figure out what kind of thing this is
if($Questions[$i]->instruction == true){
$type = 2;
}
else if($Questions[$i]->image == true){
$type = 3;
$width = $Questions[$i]->width;
$height = $Questions[$i]->height;
//if we have an image we want to put the path as the text
$text = $Questions[$i]->path;
}
else{
$type = 1;
}
//bind the params
$question_insert_stmt->bind_param("isiisii", $qn_id, $text, $type, $numAnswers, $user, $width, $height);
//execute
$success = $question_insert_stmt->execute() or die ($mysqli2->error);
//bind the id of the questionnaire that was just inserted
$q_id = -1;
$question_insert_stmt->bind_result($q_id);
//fetch the id
$data = $question_insert_stmt->fetch();
//close the statement
$question_insert_stmt->close();
}
}