PHP PDO更新:SQLSTATE [HY093]:参数号无效:未定义参数

时间:2015-03-30 20:34:41

标签: php mysql pdo

我知道这个问题多次出现,但我在代码中找不到错误。在我的update-branch中,每个$ stmt-> bindValue(...)都返回TRUE,但是我捕获了pdo异常

  

SQLSTATE [HY093]:参数号无效:参数未定义

插入新条目可以正常工作。

在我的mysql-database中,表'系统'是:

id -> int(11), primary key
computer_name -> varchar(255)
cpu_speed -> int(11)
ram_size -> int(11)
mac_address -> varchar(255)
operating_system -> varchar(255)

我的错误抛出代码:

// Search for mac_address.
// If an entry with the same MAC exists update the entry.
// Else, create a new entry
$stmt = $pdo->prepare("SELECT * FROM system WHERE mac_address=:mac");
$stmt->bindValue(":mac", $mac_address, PDO::PARAM_STR);
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

// If no rows are returned, no entry exists => create a new one
if(empty($rows))
{  
  // Prepare statement
  $stmt = $pdo->prepare("INSERT INTO
       system(`computer_name`,`cpu_speed`,`ram_size`,`mac_address`, `operating_system`)
       VALUES(:computer_name, :cpu_speed, :ram_size, :mac_address, :operating_system)");
  $stmt->bindValue(":computer_name", $computer_name, PDO::PARAM_STR);
  $stmt->bindValue(":cpu_speed", $cpu_speed, PDO::PARAM_INT);
  $stmt->bindValue(":ram_size", $ram_size, PDO::PARAM_INT);
  $stmt->bindValue(":mac_address", $mac_address, PDO::PARAM_STR);
  $stmt->bindValue(":operating_system", $operating_system, PDO::PARAM_STR);
}
else  // Update existing entry
{
  //computer_name   cpu_speed   ram_size    mac_address     operating_system 
  $stmt = $pdo->prepare("UPDATE system
      SET computer_name=:computer_name,
          cpu_speed=:cpu_speed,
          ram_size=:ram_size,
          operating_system=:operating_sytem,
          mac_address=:mac_address_in
       WHERE mac_address=:mac_address_query");
  echo$stmt->bindValue(":computer_name", $computer_name, PDO::PARAM_STR);
  echo$stmt->bindValue(":cpu_speed", $cpu_speed, PDO::PARAM_INT);
  echo$stmt->bindValue(":ram_size", $ram_size, PDO::PARAM_INT);
  echo$stmt->bindValue(":mac_address_in", $mac_address, PDO::PARAM_STR);
  echo$stmt->bindValue(":operating_system", $operating_system, PDO::PARAM_STR);
  echo$stmt->bindValue(":mac_address_query", $mac_address, PDO::PARAM_STR);
}

// Execute the command
$stmt->execute();

1 个答案:

答案 0 :(得分:2)

SQLSTATE[HY093]: Invalid parameter number: parameter was not defined

这意味着您有一个未定义的参数。这里有错误的接缝operating_system=:operating_sytem,可能应该是operating_system=:operating_system,。这使得一个缺少参数,因为它没有在这里设置,因为你拼错了一个单词。请尝试检查您prepare语句中的每个字词以及相应的bindValue