如何用逗号添加值?

时间:2016-07-19 04:47:13

标签: php mysql database

我需要插入这样的值:' aaaa,bbbb'在数据库中。

我正在使用此查询:

INSERT INTO a (title) VALUES ('aaaa, bbbb');

但在数据库中只保存了aaaa。 为什么?

这是剧本:

   $a = 'aaaa, bbbb';
   $query = "INSERT INTO test (title) VALUES ('".$a."');";
   $res = mysqli_query($db_con, $query) or die("fail: " . $query . ' Error:' . mysqli_error());

2 个答案:

答案 0 :(得分:4)

您的SQL没有任何问题。

我让SQLFiddle证明:

CREATE TABLE t (
 id int primary key auto_increment,
 title varchar(100) 
);

INSERT INTO t (title) VALUES('aaaaa, bbbbb'), ('ccccc, ddddd');
SELECT * FROM t;

id  title
1   aaaaa, bbbbb
2   ccccc, ddddd

仔细检查你的环境:你如何获取值,让你有一些相关的触发器等。

正确使用这样的查询的方法是使用预准备语句:

$query = "INSERT INTO a (title) VALUES (?)";
$stmt = $mysqli->prepare($query);
$stmt->bind_param("s", $a);
$stmt->execute();

或者,程序风格:

$query = "INSERT INTO a (title) VALUES (?)";
$stmt = mysqli_prepare($db_con, $query);
mysqli_stmt_bind_param($db_con, "s", $a);
mysqli_stmt_execute($stmt);

答案 1 :(得分:3)

对我来说很好:

mysql> create table xrobot_test (
    -> title varchar(100)
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql> describe xrobot_test;
+-------+--------------+------+-----+---------+-------+
| Field | Type         | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+-------+
| title | varchar(100) | YES  |     | NULL    |       |
+-------+--------------+------+-----+---------+-------+
1 row in set (0.00 sec)

mysql> INSERT INTO xrobot_test (title) VALUES ('aaaa, bbbb');
Query OK, 1 row affected (0.00 sec)

mysql> select * from xrobot_test;
+------------+
| title      |
+------------+
| aaaa, bbbb |
+------------+
1 row in set (0.00 sec)