CodeIgniter 使用字符串中的引号将数据插入数据库

Question

数据看起来像

$data = array
(
'question' => 'How to say “something” in'
'answer_one' => '1. Some Answer'
...
'correct_answer' => 1
);

我用

$this->db->insert('questions',$data);

当我跑步时

$this->db->last_query()

我明白了：

INSERT INTO `questions` (`question`, `answer_one`, ... , `correct_answer`) VALUES ('How to say “Something”  in', '1. Some Answer', ... ,'1')

和数据保存为

怎么说？有什么？在

还有

$data = array
(
'question' => 'My Name is…'
'answer_one' => '1. Some Answer'
...
'correct_answer' => 1
);

运行方式

INSERT INTO `questions` (`question`, `answer_one`, ... , `correct_answer`) VALUES ('My Name is…', '1. Name', ... , '1')

插入为

“我的名字是？”

$data = array
(
'question' => 'What's your name?'
'answer_one' => '1. Some Answer'
...
'correct_answer' => 1
);

插入为

你叫什么名字？

问题表是这样的

CREATE TABLE `questions` (
 `question_id` int(11) NOT NULL AUTO_INCREMENT,
 `question` varchar(200),
 `answer_one` varchar(80),
 ...
 `correct_answer` int(2),
 `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
 PRIMARY KEY (`question_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

Answer 1

使用htmlentities()

$data = array
(
    'question' => htmlentities('How to say “something” in'),
    'answer_one' => '1. Some Answer'
    ...
    'correct_answer' => 1
);

或者

使用str_replace()

$value = 'How to say “something” in';
$data = array
(
    'question' => str_replace('"', '', $value);,
    'answer_one' => '1. Some Answer'

     'correct_answer' => 1
);

Answer 2

这是客户端字符集的问题。什么时候，根据我之前在 mysql 命令行客户端中的内容（在客户端中时），我运行 status;，除其他外，我得到：

mysql> 状态；

mysql  Ver 14.14 Distrib 5.6.24, for Win64 (x86_64)

Connection id:          88
Server version:         5.6.24-log MySQL Community Server (GPL)
Protocol version:       10
Connection:             localhost via TCP/IP
Server characterset:    utf8
Db     characterset:    utf8
Client characterset:    cp850
Conn.  characterset:    cp850

然后：

mysql> use so_gibberish;
Database changed
mysql> select * from questions;
+-------------+----------------------------+----------------+----------------+---------------------+
| question_id | question                   | answer_one     | correct_answer | created_at          |
+-------------+----------------------------+----------------+----------------+---------------------+
|           1 | How to say ?Something?  in | 1. Some Answer |              1 | 2015-11-01 21:06:23 |
+-------------+----------------------------+----------------+----------------+---------------------+

甚至创建另一个数据库，例如：

CREATE DATABASE newdb CHARACTER SET utf8 COLLATE utf8_bin;
use newdb;

CREATE TABLE `questions` (
 `question_id` int(11) NOT NULL AUTO_INCREMENT,
 `question` varchar(200) CHARACTER SET utf8 COLLATE utf8_bin, -- utf8_unicode_ci,
 `answer_one` varchar(80),
 `correct_answer` int(2),
 `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
 PRIMARY KEY (`question_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

或

ALTER TABLE questions CONVERT TO CHARACTER SET utf8 COLLATE utf8_bin;

没有影响。

直到我跑了

mysql> charset utf8;
Charset changed
mysql> select * from questions;
+-------------+--------------------------------+----------------+----------------+---------------------+
| question_id | question                       | answer_one     | correct_answer | created_at          |
+-------------+--------------------------------+----------------+----------------+---------------------+
|           1 | How to say "Something"  in     | 1. Some Answer |              1 | 2015-11-01 21:06:23 |
+-------------+--------------------------------+----------------+----------------+---------------------+
1 row in set (0.00 sec)

还好吗。请注意，当我现在运行 status; 时，我得到了

Server characterset:    utf8
Db     characterset:    utf8
Client characterset:    utf8
Conn.  characterset:    utf8

参考题为Connection Character Sets and Collations的mysql手册页

连接寿命

效果很好，直到我重新启动客户端。所以有INI文件或者CONF文件设置

Mysql 工作台

我从来没有在那边遇到过问题，即使是从一开始。所以它有一个不同的client characterset

你的世界

无论该连接是什么，它都需要将 client characterset 转换为 UTF8