表单验证

1. /**
2. * 页面作用：常用表单验证类
3. * 作 者：phper
4. * 建立时间：2011-4-11
5. */
6. class validate{
7. public static function isEmail($str){
8. return is_string($str)&&preg_match('/^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,4}$/',$str);
9. }
10. public static function isUrl($str){
11. return is_string($str)&&preg_match("/^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^\"\"])*$/",$str);
12. }
13. public static function isPhone($str,$type){
14. $preg_array_pho=array(
15. 'cn'=>'/^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/',
16. 'tw'=>''
17. );
18. if(in_array($type,array_keys($pre_array_pho))){
19. return preg_match($pre_array_pho[$type],$str);
20. }else{
21. die($type.'-phone number is undefined');
22. }
23. }
24. public static function isText($str,$type,$min_lenth=1,$max_lenth=''){
25. $preg_array_text=array(
26. 'ch'=>"/^([\x81-\xfe][\x40-\xfe]){".$min_lenth.",".$max_lenth."}$/",
27. 'num'=>"/^[0-9]{".$min_lenth.",".$max_lenth."}$/i",
28. );
29. if(in_array($type,array_keys($preg_array_text))){
30. return is_string($preg_array_text)&&preg_match($preg_array_text[$type],$str);
31. }else{
32. die($type.'-text is undefined');
33. }
34. }
35. public static function isIp($ip){
36. return preg_match("/^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])" . "(\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}$/", $ip);
37. }
38. public static function isDate($var){
39. return preg_match("/([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})/",$var);
40. }
41. public static function isColor($var){
42. return preg_match("/^#?([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$/",$var);
43. }
44. public static function isUserName($var){
45. return preg_match("/^[a-zA-Z0-9_\.\-]{3,16}$/",$var);
46. }
47. public static function isPic($var){
48. return preg_match("/^[a-zA-Z0-9\-\.]+\.(jpg|jpeg|gif|png)$/",$var);
49. }
50. }
51. ?>

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