How to solve php json_encode garbled characters?

Solution: 1. Set the value of the second parameter of json_encode() to "JSON_UNESCAPED_UNICODE"; 2. First transcode the text with urlencode, then use json_encode() to encode, and then perform urldecode decoding. Can.

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json_encode() is used to JSON encode variables; if successful Returns a JSON encoded string, or FALSE on failure.

In the encoding process, json_encode is often used to process Chinese. However, there is a problem. Chinese will be transcoded and changed into the format of "\u****". How to avoid being transcoded? , What about garbled codes?

Method 1: PHP version is 5.4 or above;

echo json_encode( '中文' );     // "\u4e2d\u6587"
echo json_encode( '中文', JSON_UNESCAPED_UNICODE ); // "中文"

Instructions:

Syntax: json_encode ( $value [, $options = 0 ] )

1. $value is the value to be encoded, and this function is only valid for UTF8 encoded data;

2. options: binary composed of the following constants Masks:

JSON_HEX_QUOT, JSON_HEX_TAG, JSON_HEX_AMP, JSON_HEX_APOS, JSON_NUMERIC_CHECK, JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, JSON_FORCE_OBJECT, JSON_PRESERVE_ZERO_FRACTION, JSON_UNESCAPED _UNICODE, JSON_PARTIAL_OUTPUT_ON_ERROR.

3. The second parameter is generally not needed;

4. JSON data is actually a string, which can be printed out with var_dump() to see the data type;

5. Return JSON data if the execution is successful, otherwise return FALSE.

Method 2: First transcode the Chinese characters urlencode, in json_encode; then urldecode decode;

echo $con = '中文'; // 中文
echo $con = urlencode( $con ); // %E4%B8%AD%E6%96%87"
echo $con = json_encode( $con ); // %E4%B8%AD%E6%96%87"
echo $con = urldecode( $con ); // "中文"

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