php将字符串转为HTML的实体引用的一个类

3. class HtmlEncode {

4. static $_convertToHtmlEntitiesSrcEncoding='UTF-8';
6. /**
7. * 将非ASCII字符串转换成HTML实体
8. *
9. * @example HtmlEncode::encode("我信了"); //输出:我信了
10. * @param string $s 要进行编码的字符串
11. * @return string 返回HTML实体引用
12. */
13. public static function encode($s,$srcEncoding='UTF-8') {
14. self::$_convertToHtmlEntitiesSrcEncoding=$srcEncoding;
15. return preg_replace_callback('|[^\x00-\x7F]+|',array(__CLASS__,'_convertToHtmlEntities'),$s);
16. }
18. public static function _convertToHtmlEntities($data) {
19. if (is_array($data)) {
20. $chars=str_split(iconv(self::$_convertToHtmlEntitiesSrcEncoding,"UCS-2BE",$data[0]),2);
21. $chars=array_map(array(__CLASS__,__FUNCTION__),$chars);
22. return join("",$chars);
23. } else {
24. $code=hexdec(sprintf("%02s%02s;",dechex(ord($data {0})),dechex(ord($data 吓死猫的老鼠))));
25. return sprintf("%s;",$code);
26. }
27. }
28. }

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