Question

我试图从我的Android应用程序中添加一个符号到数据库..例如我想添加这个A⊂B ..这将保存为A？ B在数据库中。我尝试在android中记录字符串并正确记录，所以我认为问题是在PHP中吗？也正确检索数据库中的符号，我只有在从应用程序添加或编辑符号时才有问题。

这是我的添加php

<?php



// array for JSON response
$response = array();

// check for required fields
if (isset($_POST['name']) && isset($_POST['symbol']) && isset($_POST['description'])) {

$name = $_POST['name'];
$description = $_POST['description'];
$symbol = $_POST['symbol'];

// include db connect class
require_once __DIR__ . '/db_connect.php';

// connecting to db
$db = new DB_CONNECT();
// mysql_query("SET NAMES 'utf8'"); -> this needs to be removed

mysql_query("SET NAMES 'utf8'");

// mysql inserting a new row
$result = mysql_query("INSERT INTO glossary(Symbol, Name, Description) VALUES('$symbol', '$name', '$description')");
header("Content-type: application/json; charset=utf-8");

// check if row inserted or not
if ($result) {
    // successfully inserted into database
    $response["success"] = 1;
    $response["message"] = "glossary successfully created.";

    // echoing JSON response
    echo json_encode($response);
} else {
    // failed to insert row
    $response["success"] = 0;
    $response["message"] = "Oops! An error occurred.";

    // echoing JSON response
    echo json_encode($response);
}
} else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";

// echoing JSON response
echo json_encode($response);
}
?>

和我的数据库连接php

<?php

class DB_CONNECT {

// constructor
function __construct() {
    // connecting to database
    $this->connect();
}

// destructor
function __destruct() {
    // closing db connection
    $this->close();
}

/**
 * Function to connect with database
 */
function connect() {
    // import database connection variables
    require_once __DIR__ . '/db_config.php';

    // Connecting to mysql database
    $con = mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD) or die(mysql_error());

    // Selecing database
    $db = mysql_select_db(DB_DATABASE) or die(mysql_error()) or die(mysql_error());
mysqli_query($link, "SET SESSION CHARACTER_SET_RESULTS =utf8;");
mysqli_query($link, "SET SESSION CHARACTER_SET_CLIENT =utf8;");
    // returing connection cursor
    return $con;
}

/**
 * Function to close db connection
 */
function close() {
    // closing db connection
    mysql_close();
}

}

?>

请某人帮我这个..谢谢！

Answer 1

在 php 中添加 utf-8 ，您可以使用：

header('Content-type: text/plain; charset=utf-8');

并且在您使用的代码中：mysql_query和mysqli_query为什么会这样，只使用一种格式并更好地使用mysqli_query即mysqli个函数。

并且最好像@ Fred-ii-建议的那样进行适当的修正。

Answer 2

尝试在连接到数据库后运行SET NAMES 'utf8'和SET CHARSET 'utf8'。

mysql_query("SET NAMES 'utf8'");
mysql_query("SET CHARSET 'utf8'");

如何让php添加utf8字符

2 个答案: