Get fields from connection and write them to database using PHP

Question 1: PHP gets the connection fields and writes them to the database?

To get the connection fields in PHP and write to the database, you need to perform the following steps:

1. Establish a database connection: Use # in PHP Extensions such as ##mysqli or PDO establish a connection to the MySQL database.

$servername = "your_server_name";
$username = "your_username";
$password = "your_password";
$database = "your_database";

$conn = new mysqli($servername, $username, $password, $database);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

2. Get the connection field: Use PHP's **$_POST or $_GET** super global array to get the connection field submitted by the form .

// 假设表单中有名为 'input_field' 的字段
$inputField = $_POST['input_field'];

3. Writing SQL statements: Based on the obtained field data, write SQL insertion statements.

$sql = "INSERT INTO your_table_name (column_name) VALUES ('$inputField')";

4. Execute SQL statements: Use the database connection object to execute SQL statements.

if ($conn->query($sql) === TRUE) {
    echo "数据插入成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

5. Close the database connection: After completing the database operation, close the database connection.

$conn->close();

Question 2: How to write a PHP program in PHP MySQL to store data in the database?

To write a PHP program to store data in a MySQL database, you can refer to the following steps:

1. 1.

   Establish a database connection: Use PHP's mysqli or PDO to establish a connection with the MySQL database, follow the same steps as above.

2. 2.

   Get input data: Use **$_POST or $_GET** to get the input data passed by the form or other means.

$inputField1 = $_POST['input_field1'];
$inputField2 = $_POST['input_field2'];
// 可以根据实际情况获取更多字段

3. Write SQL statements: Based on the obtained field data, write SQL statements to insert data.

$sql = "INSERT INTO your_table_name (column_name1, column_name2) VALUES ('$inputField1', '$inputField2')";
// 可以根据实际情况插入更多字段

4. Execute SQL statements: Use the database connection object to execute SQL statements, the same as the above steps.

if ($conn->query($sql) === TRUE) {
    echo "数据插入成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}

5. Close the database connection: After completing the database operation, close the database connection, the same as the above steps.

$conn->close();

Summary:

To obtain the connection field in PHP and write it to the database, you need to establish a database connection, obtain input data, write SQL statements, and execute SQL statement and closing the database connection and other key steps. These steps must be taken care of to ensure the program runs properly.

The above is the detailed content of Get fields from connection and write them to database using PHP. For more information, please follow other related articles on the PHP Chinese website!