Are you troubled by PHP database garbled code? Try these solutions

Title: Trouble with garbled PHP database? To try these solutions, you need specific code examples

In the process of using PHP for database development, you often encounter database garbled problems. Garbled database codes may cause abnormal data display and cause trouble to users. This article will introduce some methods to solve the garbled problem of PHP database and provide specific code examples.

1. Database connection settings

When PHP connects to the database, the correct character encoding needs to be set to ensure the correct display of data. You can set the character set when connecting to the database. The example is as follows:

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDB";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// 设置字符集
$conn->set_charset("utf8");

?>

In the above example, we use $conn->set_charset("utf8"); to set the database connection The character set is utf8 to ensure the correct display of data.

2. Database table settings

In addition to setting the character set when connecting to the database, you can also set the character set of the table when creating the database table. You can specify the character set to be utf8 when creating the table. The example is as follows:

CREATE TABLE users (
    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(30) NOT NULL,
    email VARCHAR(50) NOT NULL,
    password VARCHAR(50) NOT NULL
) DEFAULT CHARSET=utf8;

In the above example, we pass DEFAULT CHARSET=utf8 when creating the users table. To specify the character set of the table as utf8.

3. Set the character set when querying the database

When executing the database query, you can also set the character set of the query result to ensure the correct display of data. You can set the character set before executing the query. The example is as follows:

<?php
$sql = "SELECT * FROM users";
$result = $conn->query($sql);

// 设置查询结果字符集
$result->set_charset("utf8");

?>

In the above example, we pass $result->set_charset("utf8 "); to set the character set of the query results to utf8. Through the above methods, you can effectively solve the garbled problem of PHP database and ensure the correct display of data. During development, it is recommended to develop good habits and set the correct character encoding when connecting to the database, creating tables, and executing queries to avoid garbled characters.

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