json encode function special characters

Question

Elements of an array containing special characters are converted to empty strings when encoding the array with json encode    arr   array    funds    gt   ComStage STOXX  Europe 600 Techn NR ETF    time   gt         json   json encode  arr     After JSON encoding the element  funds  is null  It happens only with special characters  copyright  trademark etc  like the ones in  ComStage STOXX  Europe 600 Techn NR ETF    Any suggestions   Thanks  UPDATE  This is what solved the problem prior to populating the array  all names are taken from the db     mysqli- gt query  SET NAMES  utf8

User · Accepted Answer

Your input has to be encoded as UTF-8 or ISO-8859-1.

http://www.php.net/manual/en/function.json-encode.php

Because if you try to convert an array of non-utf8 characters you'll be getting 0 as return value.

Since 5.5.0 The return value on failure was changed from null string to FALSE.

User · Answer

you should add charset UTF-8 in meta tag and use json encode for special characters   json   json encode  arr    json encode function converts special characters in UTF8 standard

User · Answer

To me  it works this way     Creating the ARRAY from Result   array array     while  row    result- gt fetch array MYSQL ASSOC           Converting each column to UTF8      row   array map  utf8 encode    row       array push  array  row      json encode  array

User · Answer

you should use this code    json   json encode array map  utf8 encode    arr     array map function converts special characters in UTF8 standard

User · Answer

To fix the special character issue you just have to do 2 things  1 mysql set charset  utf8       set this line on top of your page in which you are using json    If you are saving json data in database make sure that the particular column collation is set to  latin1 swedish ci

User · Answer

Use the below function    function utf8 converter  array        array walk recursive  array  function   amp  item   key            if   mb detect encoding  item   utf-8   true                      item   utf8 encode  item                          return  array

User · Answer

The manual for json encode specifies this      All string data must be UTF-8 encoded    Thus  try array mapping utf8 encode   to your array before you encode it    arr   array map  utf8 encode    arr    json   json encode  arr         funds   ComStage STOXX u00c2 u00aeEurope 600 Techn NR ETF     For reference  take a look at the differences between the three examples on this fiddle  The first doesn t use character encoding  the second uses htmlentities and the third uses utf8 encode - they all return different results   For consistency  you should use utf8 encode        Docs    json encode   utf8 encode   array map

[php] json_encode function: special characters

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