php - PDO 获取 sql 错误代码 - 必须是整数类型

Question

如何通过 PDO 从 MYSQL 获取整数错误代码？

try{
    ...
}
catch(PDOException $e){
    throw new Fatal($e->getMessage(), $e->getCode());
}

$e->getCode() 将返回类似 HY000

的内容

Argument 2 passed to Fatal::__construct() must be of the type integer, string given ...

... Fatal->__construct('SQLSTATE[HY000]...', 'HY000')

Answer 1

看看$e->errorInfo。

http://php.net/manual/en/class.pdoexception.php说:

errorInfo

• Corresponds to PDO::errorInfo() or PDOStatement::errorInfo()

http://php.net/manual/en/pdostatement.errorinfo.php记录 errorInfo() 返回的字段。

示例:

try {
        $stmt = $pdo->query("Bogus Query");
} catch (PDOException $e) {
        echo "Caught exception!\n";
        var_dump($e->errorInfo);
}

输出:

Caught exception!
array(3) {
  [0]=>
  string(5) "42000"
  [1]=>
  int(1064)
  [2]=>
  string(157) "You have an error in your SQL syntax; check the manual that corresponds to
      your MySQL server version for the right syntax to use near 'Bogus Query' at line 1"
}

您可以看到[1]元素是一个整数。