public static function supportedEncodings()
    {
        if (static::$supported_encodings === null) {
            $supported = mb_list_encodings();

            foreach ($supported as $key => $value) {
                static::$supported_encodings[strtolower($value)] = $value;

                foreach (mb_encoding_aliases($value) as $k => $v) {
                    static::$supported_encodings[strtolower($v)] = $value;
                }
            }
        }

        return static::$supported_encodings;
    }
public static function supportedEncodings()
    {
        if (static::$supported_encodings === null) {
            $supported = mb_list_encodings();

            foreach ($supported as $key => $value) {
                static::$supported_encodings[strtolower($value)] = $value;

                foreach (mb_encoding_aliases($value) as $k => $v) {
                    static::$supported_encodings[strtolower($v)] = $value;
                }
            }
        }

        return static::$supported_encodings;
    }
public static function supportedEncodings ( ) { if ( static :: $ supported_encodings === null ) { $ supported = mb_list_encodings ( ) ; foreach ( $ supported as $ key => $ value ) { static :: $ supported_encodings [ strtolower ( $ value ) ] = $ value ; foreach ( mb_encoding_aliases ( $ value ) as $ k => $ v ) { static :: $ supported_encodings [ strtolower ( $ v ) ] = $ value ; } } } return static :: $ supported_encodings ; }
Creates an array with all of the aliases->encodings

@return array
Creates an array with all of the aliases - > encodings