我使用json来回显数据库中的变量。但是ë显示为■。
为了纠正这个问题,我已经这样做了:
没有运气。任何想法如何解决。
编辑:
if (isset($_GET['term'])){
$return_arr = array();
try {
$conn = new PDO("mysql:host=".DB_SERVER.";port=8889;dbname=".DB_NAME, DB_USER, DB_PASSWORD);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $conn->prepare('SELECT School FROM Schools WHERE School LIKE :term');
$stmt->execute(array('term' => '%'.$_GET['term'].'%'));
while($row = $stmt->fetch()) {
$return_arr[] = $row['School'];
}
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
/* Toss back results as json encoded array. */
echo mb_detect_encoding($return_arr, 'auto');
}
答案 0 :(得分:1)
首先,看看您的表格实际上是utf8
编码的。看起来应该是这样的:
CREATE TABLE `Schools` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`School` varchar(100) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
然后像这样连接到您的数据库:
$dsn = 'mysql:dbname=test;host=127.0.0.1;port=3306;charset=utf8';
$user = 'root';
$password = 'password';
$conn = new PDO($dsn, $user, $password, [PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"]);
最后使用JSON_UNESCAPED_UNICODE
:
echo json_encode($row, JSON_UNESCAPED_UNICODE);
这应该可以解决问题。
<强>更新强>
这适用于我在上面提供的表格上的PHP7.1:
if (isset($_GET['term'])) {
$return_arr = array();
try {
$conn = new PDO("mysql:host=127.0.0.1;port=8101;dbname=test;charset=utf8", $user, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $conn->prepare('SELECT School FROM Schools WHERE School LIKE :term');
$stmt->execute(array('term' => '%'.$_GET['term'].'%'));
$return_arr = [];
while($row = $stmt->fetch()) {
$return_arr[] = $row['School'];
}
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
/* Toss back results as json encoded array. */
echo json_encode($return_arr, JSON_UNESCAPED_UNICODE);
}
答案 1 :(得分:0)
1)在JSON_UNESCAPED_UNICODE
中使用json_encode
。
2)确保数据存储,数据访问, 输出和输入UTF-8字符集(UTF-8 all the way through)。