1. */
2. function phpescape($str){
3. $sublen=strlen($str);
4. $restring="";
5. for ($i=0;$i<$sublen;$i++){
6. if(ord($str[$i])>=127){
7. $tmps教程tring=bin2hex(iconv("utf-8","ucs-2",substr($str,$i,2)));
8. if (!eregi("win",php_os)){
9. $tmpstring=substr($tmpstring,2,2).substr($tmpstring,0,2);
10. }
11. $restring.="%u".$tmpstring;
12. $i++;
13. } else {
14. $restring.="%".dechex(ord($str[$i]));
15. }
16. }
17. return $restring;
18. }
19. function unescape($str) {
20. $str = rawurldecode($str);
21. preg_match_all("/%u.{4}|&#x.{4};|&#d+;|.+/u",$str,$r);
22. $ar = $r[0];
23. foreach($ar as $k=>$v) {
24. if(substr($v,0,2) == "%u")
25. $ar[$k] = iconv("ucs-2","utf-8",pack("h4",substr($v,-4)));
26. elseif(substr($v,0,3) == "&#x")
27. $ar[$k] = iconv("ucs-2","utf-8",pack("h4",substr($v,3,-1)));
28. elseif(substr($v,0,2) == "&#") {
29. $ar[$k] = iconv("ucs-2","utf-8",pack("n",substr($v,2,-1)));
30. }
31. }
32. return join("",$ar);
33. }
34. function escape($str) {
35. preg_match_all("/[x80-xff].|[x01-x7f]+/",$str,$r);
36. $ar = $r[0];
37. foreach($ar as $k=>$v) {
38. if(ord($v[0]) < 128)
39. $ar[$k] = rawurlencode($v);
40. else
41. $ar[$k] = "%u".bin2hex(iconv("gb2312","ucs-2",$v));
42. }
43. return join("",$ar);
44. }
45. function unescape($str) {
46. $str = rawurldecode($str);
47. preg_match_all("/(?:%u.{4})|.+/",$str,$r);
48. $ar = $r[0];
49. foreach($ar as $k=>$v) {
50. if(substr($v,0,2) == "%u" && strlen($v) == 6)
51. $ar[$k] = iconv("ucs-2","gb2312",pack("h4",substr($v,-4)));
52. } //开源代码phpfensi.com
53. return join("",$ar);
54. }