有一个问题，PDO给我一个异常，说参数是未定义的。但是，我提供的两个数组肯定有相同的长度和键，所以有什么不对？
下面你可以看到函数，然后是更新查询，然后是正在发送的数组。 52是每个部分的长度，下面是异常文本。
public function query($sql,$data,$read) {
if (!($query = $this->connection->prepare($sql))) { exception(implode(' ',$query->errorInfo()),intval($query->errorCode())); }
if (!($query->execute($data))) { exception(implode(' ',$query->errorInfo()),intval($query->errorCode())); }
if ($read) { $result = $query->fetchAll(PDO::FETCH_ASSOC); $this->count_reads++; } else { $result = $query->rowCount(); $this->count_writes++; }
$query = null; return $result;
}
UPDATE objects_servers SET id = :id，info__enabled = :info__enabled，info__version = :info__version，info__title = {{ 1}}，:info__title = info__color，:info__color = info__contact，:info__contact = info__chunksize，:info__chunksize = {{1} }，info__downloadwait = :info__downloadwait，info__crypto__ciphers = :info__crypto__ciphers，info__crypto__salt-length = :info__crypto__salt-length，info__crypto__pbkdf2-algorithm = :info__crypto__pbkdf2-algorithm， info__crypto__pbkdf2-iterations = :info__crypto__pbkdf2-iterations，info__crypto__chunk-size = :info__crypto__chunk-size，info__email__hostname = :info__email__hostname，info__email__smtp-auth = :info__email__smtp-auth，{{ 1}} = info__email__auth-password，:info__email__auth-password = info__email__auth-username，:info__email__auth-username = info__email__from-address，:info__email__from-address = info__email__from-name，{{1} } = :info__email__from-name，info__email__port = :info__email__port，info__email__smtp-secure = :info__email__smtp-secure，info__email__bcc-address = :info__email__bcc-address，features__users__download-pages = :features__users__download-pages，features__users__file-encrypt = :features__users__file-encrypt，features__users__admin = :features__users__admin，features__server__email-validation = :features__server__email-validation，features__server__softlimit = {{ 1}}，:features__server__softlimit = features__server__publiclimit，:features__server__publiclimit = features__server__hourly-statistics，:features__server__hourly-statistics = features__server__actionlog，:features__server__actionlog = {{1} }，features__server__limit-alerts = :features__server__limit-alerts，features__server__sequential-contentfill = :features__server__sequential-contentfill，features__server__outgoing-email + = :features__server__outgoing-email，features__server__multiple-accounts + = {{1} }，:features__server__multiple-accounts + = statistics__timed__#start，:statistics__timed__#start + = statistics__timed__storage，:statistics__timed__storage + = statistics__timed__bandwidth，:statistics__timed__bandwidth + = {{ 1}}，statistics__timed__downloads = :statistics__timed__downloads，statistics__forever__storage = :statistics__forever__storage，statistics__forever__bandwidth = :statistics__forever__bandwidth，statistics__forever__downloads = {{1} }，:statistics__forever__downloads = limits__server__forever__storage，:limits__server__forever__storage = limits__server__timed__bandwidth，:limits__server__timed__bandwidth = limits__server__timed__downloads，:limits__server__timed__downloads = limits__server__timed-expire， :limits__server__timed-expire = limits__server__public-filecount，:limits__server__public-filecount = limits__server__public-filesize，:limits__server__public-filesize = limits__users__filesize WHERE :limits__users__filesize ='DjvMb938gkH867d3';
{ “ID”： “DjvMb938gkH867d3”， “info__enabled”： “1”， “info__version”： “0.0.1”， “info__title”： “发展”， “info__color”： “＃007127”， “info__contact” ： “yeeeup”， “info__chunksize”： “2097152”， “info__downloadwait”： “10”， “info__crypto__ciphers”： “蛇：CTR”， “info__crypto__salt长度”： “512”， “info__crypto__pbkdf2算法”： “SHA512” “info__crypto__pbkdf2迭代”： “5000”， “info__crypto__chunk大小”： “1048576”， “info__email__hostname”： “好玩”， “info__email__smtp-auth的”： “1”， “info__email__auth密码”： “没了”，” info__email__auth-用户名 “：” blah1" ， “info__email__from地址”： “blah2”， “info__email__from名”： “人”， “info__email__port”： “587”， “info__email__smtp安全”： “TLS”，“info__email__bcc-地址 “：” blah3" ， “features__users__download-页”： “1”， “features__users__file-加密”： “1”， “features__users__admin”： “0”， “features__server__email验证”： “0”， “features__server__softlimit”：” 1" ， “features__server__publiclimit”： “0”， “features__server__hourly统计”： “1”， “features__server__actionlog”： “1”，“features__server__限制的警告 “：” 1" ， “features__server__sequential-contentfill”： “0”， “features__server__outgoing电子邮件”： “0”， “features__server__multiple账户”： “1”， “statistics__timed __＃开始”：空， “statistics__timed__storage” ： “0”， “statistics__timed__bandwidth”： “0”， “statistics__timed__downloads”： “0”， “statistics__forever__storage”： “0”， “statistics__forever__bandwidth”： “0”， “statistics__forever__downloads”： “0”， “limits__server__forever__storage”：空“limits__server__timed__bandwidth”：空， “limits__server__timed__downloads”：空， “limits__server__timed-过期”：空， “limits__server__public-filecount”：空， “limits__server__public-文件大小”：空， “limits__users__filesize”：空， “limits__users__filecount”：空” limits__users__forever__storage “：NULL，” limits__users__timed__bandwidth “：NULL，” limits__users__timed__downloads“：空}
52 52
致命错误：未捕获异常'PDOException'，消息'SQLSTATE [HY093]：参数号无效：参数未在C：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ server \ classes \ database.class中定义.inc.php：28堆栈跟踪：＃0 C：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ server \ classes \ database.class.inc.php（28）：PDOStatement-＆gt; execute（Array）＃1 C：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ server \ classes \ server.class.inc.php（117）：Database-＆gt; query（'UPDATE objects _...'，Array，false）＃2C ：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ index.php（71）：Server-＆gt; Save（）＃3 C：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ index.php（32）： Andromeda-＆gt; Run（）＃4 {main}在第28行的C：\ Program Files \ Apache24 \ htdocs \ development \ Andromeda \ server \ classes \ database.class.inc.php中抛出
答案 0 :(得分：0)
我似乎缩小了它 - 如果其中一个键包含一个连字符，则PDO只返回错误：test__variable-hyphen。为什么不允许这样做？
答案 1 :(得分：0)
许多特殊字符（例如+， - ，逗号，...）不是合法的列名，除非您将列名括在bactics中：test__variable-hyphen。
否则，它看起来太像减法了。