[MDEV-13633] JSON_ARRAY() - bad output with some UTF8 characters - Jira

I compared the output from JSON_ARRAY () in mariaDB and json_encode () in php-5.6.31.

I have found that some of the Czech accent characters are not properly converted to number code (connection setting: SET NAMES UTF8):

$row = $this->database->query("SELECT JSON_ARRAY('1. ě 2. š 3. č 4. ř 5. ž 6. ý 7. á 8. í 9. é 10. ů 11. ú') AS json_data")->fetch();

$json_test = [

    'mysql' => $row->json_data,

     'php' => json_encode('1. ě 2. š 3. č 4. ř 5. ž 6. ý 7. á 8. í 9. é 10. ů 11. ú'),

];

die(var_dump($json_test));

And here is output:

array(2) {

  ["mysql"]=>

  string(90) "["1. \u011B 2. \u0161 3. \u010D 4. \u0159 5. \u017E 6. ? 7. ? 8. ? 9. ? 10. \u016F 11. ?"]"

  ["php"]=>

  string(113) ""1. \u011b 2. \u0161 3. \u010d 4. \u0159 5. \u017e 6. \u00fd 7. \u00e1 8. \u00ed 9. \u00e9 10. \u016f 11. \u00fa""

relates to

MDEV-23890 JSON_ARRAY utf8mb4 encoding error

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