Question

我收到错误

完整性约束违规：1452无法添加或更新子行：外键约束失败（cv_localv4。cv_answer_languages，CONSTRAINT Relationship10 FOREIGN KEY（id_cv_language_levels）参考cv_languages_levels（id_cv_language_levels）ON更新更新行动N）

尝试将值插入cv_answer_languages表时。

应插入的所有值都正确且有效。

我已经阅读了十几个类似的问题，但仍然没有运气:(

我添加了语言表的图片，因此您可以存在值：http://prntscr.com/71vw0d

代码输出：

17 id_cv_languages_levels

13 id_cv

1 id_language

2 id_cv_questions

我无法补充。 //这只是回显消息from try{code below}catch (PDOException $e)

SQLSTATE [23000]：完整性约束违规：1452无法添加或更新子行：外键约束失败（cv_localv4。cv_answer_languages，CONSTRAINT Relationship10 FOREIGN KEY（{{ 1}}）REFERENCES id_cv_language_levels（cv_languages_levels）ON更新更新行动N）

id_cv_language_levels

cv_answer_languages表

    $array=array(
        "listening"=>filter_input(INPUT_POST, 'listening'), //just values like a1,b2,c2 etc...
        "reading"=>filter_input(INPUT_POST, 'reading'),
        "spoken_interaction"=>filter_input(INPUT_POST, 'spoken_interaction'),
        "spoken_production"=>filter_input(INPUT_POST, 'spoken_production'),
        "writing"=>filter_input(INPUT_POST, 'writing'),
        );
$language=filter_input(INPUT_POST, 'language'); //1 for English etc..

    $sql2=$db->prepare("INSERT INTO `cv_answer_languages`(`id_cv_language_levels`, `id_cv`, `id_language`, `id_cv_questions`) VALUES 
(:id_cv_languages_levels,:id_cv,:id_language,:id_cv_questions);");
   $sql2->bindParam(':id_cv_languages_levels',$lang_lev_last_id,PDO::PARAM_INT);
   $sql2->bindParam(':id_cv',$cv_id_query,PDO::PARAM_INT);
   $sql2->bindParam(':id_language',$language,PDO::PARAM_INT);//broken
   $sql2->bindParam(':id_cv_questions',$id_cv_question,PDO::PARAM_INT);
   $sql2->execute();

cv_languages_levels

CREATE TABLE IF NOT EXISTS `cv_answer_languages` (
`id_cv_language` int(11) NOT NULL,
  `id_cv_language_levels` int(11) DEFAULT NULL,
  `id_cv` int(11) DEFAULT NULL,
  `id_language` int(11) DEFAULT NULL,
  `id_cv_questions` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_slovenian_ci;

语言表

    CREATE TABLE IF NOT EXISTS `cv_languages_levels` (
`id_cv_language_levels` int(11) NOT NULL,
  `listening` varchar(20) COLLATE utf8_slovenian_ci DEFAULT NULL,
  `reading` varchar(20) COLLATE utf8_slovenian_ci DEFAULT NULL,
  `spoken_interaction` varchar(20) COLLATE utf8_slovenian_ci DEFAULT NULL,
  `spoken_production` varchar(20) COLLATE utf8_slovenian_ci DEFAULT NULL,
  `writing` varchar(20) COLLATE utf8_slovenian_ci DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_slovenian_ci;

cv table

CREATE TABLE IF NOT EXISTS `languages` (
`id_language` int(11) NOT NULL,
  `language` varchar(45) COLLATE utf8_slovenian_ci DEFAULT NULL,
  `short` varchar(15) COLLATE utf8_slovenian_ci DEFAULT NULL
) ENGINE=InnoDB AUTO_INCREMENT=108 DEFAULT CHARSET=utf8 COLLATE=utf8_slovenian_ci;

完整性约束违规：1452无法添加或更新子行：外键约束失败

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