MySqli命令不同步；您现在不能运行此命令

Question

我已经将注册脚本从mysql转换为mysqli。我作为mysql正常工作，但是现在却给我错误

Commands out of sync; you can't run this command now

这是我用来注册用户的功能

function register_user($register_data) { 
global $myConnection;
array_walk($register_data, 'array_sanitize'); 
//Make the array readable and seperate the fields from data 
$fields = '`' . implode('`, `', array_keys($register_data)) . '`'; 
$data = '\'' . implode('\', \'', $register_data) . '\''; 
//Insert the data and email an activation email to the user 
mysqli_query($myConnection, "INSERT INTO `members` ($fields) VALUES ($data)") or die(mysqli_error($myConnection)); 
email($register_data['mem_email'], 'Activate your account', "Hello " . $register_data['mem_first_name'] . ",\n\nThank you for creating an account with H Fencing. Please use the link below to activate your account so we can confirm you identity:\n\nhttp://blah.blah.co.uk/activate.php?mem_email=" . $register_data['mem_email'] . "&email_code=" . $register_data['email_code'] . "\n\n - David & Jay "); 
}

电子邮件可以很好地发送来自我的阵列的正确数据。但是，没有数据插入到数据库中，并且出现了上面提到的错误。我以前从未遇到过这个错误。

Answer 1

如果 命令不同步； 您现在无法在客户端代码中运行此命令，您以错误的顺序调用了客户端函数。

例如，如果您使用的是mysql_use_result（）并尝试执行新查询，然后再调用mysql_free_result（），则可能发生这种情况。如果您尝试执行两个返回数据的查询，而没有在两者之间调用mysql_use_result（）或mysql_store_result（），也会发生这种情况。

从这里：http :
//dev.mysql.com/doc/refman/5.0/en/commands-out-of-
sync.html

更新资料

如果将a用作查询变量，然后将该变量直接粘贴到类似MySQL Workbench的内容中，则可以在执行之前检查语法。

<?php
            function myConnection(){
              $myConnection = mysqli_connect('localhost', 'my_user', 'my_password', 'my_db');
              return $myConnection;
            }


    function register_user($register_data) { 
        array_walk($register_data, 'array_sanitize'); 
        //Make the array readable and seperate the fields from data 
        $fields = '`' . implode('`, `', array_keys($register_data)) . '`'; 
        $data = "'" . implode("', '", $register_data) . "'"; 
        //Insert the data and email an activation email to the user 
        $query = "INSERT INTO `members` ($fields) VALUES ($data)";
                    $myNewConnection = myConnection();

                    if($result = mysqli_query($myNewConnection, $query)){ 
        email($register_data['mem_email'], 'Activate your account', "Hello " . $register_data['mem_first_name'] . ",\n\nThank you for creating an account with H Fencing. Please use the link below to activate your account so we can confirm you identity:\n\nhttp://blah.blah.co.uk/activate.php?mem_email=" . $register_data['mem_email'] . "&email_code=" . $register_data['email_code'] . "\n\n - David & Jay "); 
        mysqli_free_result($result);
         return ("Success");
        } else {
            echo $query;
            die(mysqli_error($myNewConnection));
        }

    }

?>