Convert arrays into UTF-8 ? PHP JSON

Question

i have multidimensional arrays generated by PHP with data from database ,but i have chars like \"č ć š đ ž\" and when i try to output that in json he just returns null , i d

Answer 1

Try this function:

function utf8_converter($array)
{
    array_walk_recursive($array, function(&$item, $key){
        if(!mb_detect_encoding($item, 'utf-8', true)){
            $item = utf8_encode($item);
        }
    });

    return $array;
}

Answer 2

I've found iconv to be the best method of converting a character set to UTF-8. You can make use of PHP's array_walk_recursive to work with multidimensional arrays:

$array = array(); // This is your multidimensional array

array_walk_recursive($array, function(&$value, $key) {
    if (is_string($value)) {
        $value = iconv('windows-1252', 'utf-8', $value);
    }
});

You can change windows-1252 to whichever character set you're converting from.

Answer 3

if multidimensional array, then use foreach loop and use this line inside foreach suppose

foreach ($your_array as $line){
   $line = array_map("utf8_decode", $line);    
}

Answer 4

I met this problem as well and in 2016 you don't need to create a function, just use 'mb_convert_variables'

mb_convert_variables('UTF-8', 'original encode', array or object)

For anyone who meet this situation, too.

Answer 5

I don't use a function, I use the conversion in each assignment like:

$APP_UA_ID = utf8_encode($row['APP_UA_ID']);

Answer 6

$row = utf8_encode( $row );
convertUtf8ToHtml( $row );
$ROW_APP_DATA[] = $row;

See function below:


// converts a UTF8-string into HTML entities
    //  - $utf8:        the UTF8-string to convert
    //  - $encodeTags:  booloean. TRUE will convert '<' to '&lt;'
    //  - return:       returns the converted HTML-string
    function convertUtf8ToHtml(&$utf8, $encodeTags = false ) 
    {
        if( !is_string( $utf8 ) || empty( $utf8 ))
         { return false; }
        $result = '';
        for ($i = 0; $i < strlen($utf8); $i++) {
            $char = $utf8[$i];
            $ascii = ord($char);
            if ($ascii < 128) {
                // one-byte character
                $result .= ($encodeTags) ? htmlentities($char) : $char;
            } else if ($ascii < 192) {
                // non-utf8 character || not a start byte
            } else if ($ascii < 224) {
                // two-byte character
                $result .= htmlentities(substr($utf8, $i, 2), ENT_QUOTES, 'UTF-8');
                $i++;
            } else if ($ascii < 240) {
                // three-byte character
                $ascii1 = ord($utf8[$i+1]);
                $ascii2 = ord($utf8[$i+2]);
                $unicode = (15 & $ascii) * 4096 +
                           (63 & $ascii1) * 64 +
                           (63 & $ascii2);
                $result .= '&#$unicode;';
                $i += 2;
            } else if ($ascii < 248) {
                // four-byte character
                $ascii1 = ord($utf8[$i+1]);
                $ascii2 = ord($utf8[$i+2]);
                $ascii3 = ord($utf8[$i+3]);
                $unicode = (15 & $ascii) * 262144 +
                           (63 & $ascii1) * 4096 +
                           (63 & $ascii2) * 64 +
                           (63 & $ascii3);
                $result .= '&#$unicode;';
                $i += 3;
            }
        }

        $utf8 = $result;
        return true;
    }