php a class that converts a string to an HTML entity reference

  • 2020-05-27 04:35:49
  • OfStack


class HtmlEncode { 
        static $_convertToHtmlEntitiesSrcEncoding='UTF-8'; 

        /**
         *  Will not ASCII String conversion to HTML entity 
         *
         * @example HtmlEncode::encode(" I have believed "); // The output :我信了
         * @param string $s  The string to encode 
         * @return string  return HTML Entity references 
         */ 
        public static function encode($s,$srcEncoding='UTF-8') { 
            self::$_convertToHtmlEntitiesSrcEncoding=$srcEncoding; 
            return preg_replace_callback('|[^\x00-\x7F]+|',array(__CLASS__,'_convertToHtmlEntities'),$s); 
        } 

        public static function _convertToHtmlEntities($data) { 
            if (is_array($data)) { 
                $chars=str_split(iconv(self::$_convertToHtmlEntitiesSrcEncoding,"UCS-2BE",$data[0]),2); 
                $chars=array_map(array(__CLASS__,__FUNCTION__),$chars); 
                return join("",$chars); 
            } else { 
                $code=hexdec(sprintf("%02s%02s;",dechex(ord($data {0})),dechex(ord($data {1})))); 
                return sprintf("&#%s;",$code); 
            } 
        }      
    } 

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