What should I do if I encounter Chinese garbled characters when processing JSON data in PHP?

It is a common problem to encounter Chinese garbled characters when processing JSON data in PHP. This is usually caused by inconsistent character encoding during the JSON encoding or decoding process. There are many ways to solve this problem, some common solutions are introduced below, with specific code examples.

Method 1: Set header header information

When outputting JSON data to the front end, you can set the header header information in the PHP file to specify the character encoding as UTF-8 to ensure that the data is No garbled characters appear during transmission.

header('Content-Type: application/json; charset=utf-8');
$jsonData = json_encode($data, JSON_UNESCAPED_UNICODE);
echo $jsonData;

Method 2: Manually convert character encoding

If JSON data is garbled during the encoding or decoding process, you can manually convert the data to character encoding.

$jsonString = '{"name":"张三","age":25}';
$jsonStringUtf8 = mb_convert_encoding($jsonString, 'UTF-8', 'UTF-8');
$data = json_decode($jsonStringUtf8, true);

Method 3: Use the JSON_UNESCAPED_UNICODE option

When using the json_encode() function, you can use the JSON_UNESCAPED_UNICODE option to ensure that Chinese characters are not converted righteousness to avoid garbled characters.

$data = array('name' => '张三', 'age' => 25);
$jsonData = json_encode($data, JSON_UNESCAPED_UNICODE);

Method 4: Manually set character encoding

Before parsing JSON data, you can manually set the character encoding to UTF-8.

$jsonString = file_get_contents('data.json');
$jsonStringUtf8 = iconv('GB2312', 'UTF-8', $jsonString);
$data = json_decode($jsonStringUtf8, true);

Through the above method, the problem of Chinese garbled characters encountered when processing JSON data in PHP can be well solved. Choosing the appropriate method depends on the specific situation. By setting the header information, manually converting the character encoding, using the JSON_UNESCAPED_UNICODE option or manually setting the character encoding, you can effectively solve the Chinese garbled problem and ensure that the data does not appear during the JSON encoding and decoding process. Garbled characters.

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