php表单数据插入到mysql数据库中

Question

我试图在数据库中插入一些表单发布数据，但它显示错误:

Error: INSERT INTO user_data (name, age, gender,happy,sad,angry) VALUES (Sourav,23,male,3.5,2.75,1.5)
Unknown column 'Sourav' in 'field list'

我使用了查询:

$sql = "INSERT INTO user_data (name, age, gender,happy,sad,angry)
VALUES (" . $name . "," . $age . "," . $gender . "," . $happyness . "," . $sadness . "," . $angryness . ")";

Answer 1

您必须将字符串值放在引号内。更新代码如下。

$sql = "INSERT INTO user_data (name, age, gender,happy,sad,angry)
VALUES ('" . $name . "','" . $age . "','" . $gender . "','" . $happyness . "','" . $sadness . "','" . $angryness . "')";

此外，您的代码也不安全。插入表单数据时使用转义字符串。