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取得随机字符串

时间：2021-07-01 10:21:17 帮助过：11人阅读

取得随机字符串
  1. /*
  2. 作用：取得随机字符串
  3. 参数：
  4. 1、(int)$length = 32 #随机字符长度，默认为32
  5. 2、(int)$mode = 0 #随机字符类型，0为大小写英文和数字，1为数字，2为小写子木，3为大写字母，4为大小写字母，5为大写字母和数字，6为小写字母和数字
  6. 返回：取得的字符串
  7. 使用：
  8. $code = new activeCodeObj;
  9. $str = $code->getCode($length, $mode);
  10. */
  11. class activeCodeObj
  12. {
  13. function getCode ($length = 32, $mode = 0)
  14. {
  15. switch ($mode) {
  16. case '1':
  17. $str = '1234567890';
  18. break;
  19. case '2':
  20. $str = 'abcdefghijklmnopqrstuvwxyz';
  21. break;
  22. case '3':
  23. $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
  24. break;
  25. case '4':
  26. $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
  27. break;
  28. case '5':
  29. $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
  30. break;
  31. case '6':
  32. $str = 'abcdefghijklmnopqrstuvwxyz1234567890';
  33. break;
  34. default:
  35. $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890';
  36. break;
  37. }
  39. $result = '';
  40. $l = strlen($str);
  42. for($i = 0;$i < $length;$i ++){
  43. $num = rand(0, $l);
  44. $result .= $str[$num];
  45. }
  46. return $result;
  47. }
  48. }
  49. 取得客户端信息
  51. /*
  52. 作用：取得客户端信息
  53. 参数：
  54. 返回：指定的资料
  55. 使用：
  56. $code = new clientGetObj;
  57. 1、浏览器：$str = $code->getBrowse();
  58. 2、IP地址：$str = $code->getIP();
  59. 4、操作系统：$str = $code->getOS();
  60. */
  62. class clientGetObj
  63. {
  64. function getBrowse()
  65. {
  66. global $_SERVER;
  67. $Agent = $_SERVER['HTTP_USER_AGENT'];
  68. $browser = '';
  69. $browserver = '';
  70. $Browser = array('Lynx', 'MOSAIC', 'AOL', 'Opera', 'JAVA', 'MacWeb', 'WebExplorer', 'OmniWeb');
  71. for($i = 0; $i <= 7; $i ++){
  72. if(strpos($Agent, $Browsers[$i])){
  73. $browser = $Browsers[$i];
  74. $browserver = '';
  75. }
  76. }
  77. if(ereg('Mozilla', $Agent) && !ereg('MSIE', $Agent)){
  78. $temp = explode('(', $Agent);
  79. $Part = $temp[0];
  80. $temp = explode('/', $Part);
  81. $browserver = $temp[1];
  82. $temp = explode(' ', $browserver);
  83. $browserver = $temp[0];
  84. $browserver = preg_replace('/([d.]+)/', '\1', $browserver);
  85. $browserver = $browserver;
  86. $browser = 'Netscape Navigator';
  87. }
  88. if(ereg('Mozilla', $Agent) && ereg('Opera', $Agent)) {
  89. $temp = explode('(', $Agent);
  90. $Part = $temp[1];
  91. $temp = explode(')', $Part);
  92. $browserver = $temp[1];
  93. $temp = explode(' ', $browserver);
  94. $browserver = $temp[2];
  95. $browserver = preg_replace('/([d.]+)/', '\1', $browserver);
  96. $browserver = $browserver;
  97. $browser = 'Opera';
  98. }
  99. if(ereg('Mozilla', $Agent) && ereg('MSIE', $Agent)){
  100. $temp = explode('(', $Agent);
  101. $Part = $temp[1];
  102. $temp = explode(';', $Part);
  103. $Part = $temp[1];
  104. $temp = explode(' ', $Part);
  105. $browserver = $temp[2];
  106. $browserver = preg_replace('/([d.]+)/','\1',$browserver);
  107. $browserver = $browserver;
  108. $browser = 'Internet Explorer';
  109. }
  110. if($browser != ''){
  111. $browseinfo = $browser.' '.$browserver;
  112. } else {
  113. $browseinfo = false;
  114. }
  115. return $browseinfo;
  116. }
  118. function getIP ()
  119. {
  120. global $_SERVER;
  121. if (getenv('HTTP_CLIENT_IP')) {
  122. $ip = getenv('HTTP_CLIENT_IP');
  123. } else if (getenv('HTTP_X_FORWARDED_FOR')) {
  124. $ip = getenv('HTTP_X_FORWARDED_FOR');
  125. } else if (getenv('REMOTE_ADDR')) {
  126. $ip = getenv('REMOTE_ADDR');
  127. } else {
  128. $ip = $_SERVER['REMOTE_ADDR'];
  129. }
  130. return $ip;
  131. }
  133. function getOS ()
  134. {
  135. global $_SERVER;
  136. $agent = $_SERVER['HTTP_USER_AGENT'];
  137. $os = false;
  138. if (eregi('win', $agent) && strpos($agent, '95')){
  139. $os = 'Windows 95';
  140. }
  141. else if (eregi('win 9x', $agent) && strpos($agent, '4.90')){
  142. $os = 'Windows ME';
  143. }
  144. else if (eregi('win', $agent) && ereg('98', $agent)){
  145. $os = 'Windows 98';
  146. }
  147. else if (eregi('win', $agent) && eregi('nt 5.1', $agent)){
  148. $os = 'Windows XP';
  149. }
  150. else if (eregi('win', $agent) && eregi('nt 5', $agent)){
  151. $os = 'Windows 2000';
  152. }
  153. else if (eregi('win', $agent) && eregi('nt', $agent)){
  154. $os = 'Windows NT';
  155. }
  156. else if (eregi('win', $agent) && ereg('32', $agent)){
  157. $os = 'Windows 32';
  158. }
  159. else if (eregi('linux', $agent)){
  160. $os = 'Linux';
  161. }
  162. else if (eregi('unix', $agent)){
  163. $os = 'Unix';
  164. }
  165. else if (eregi('sun', $agent) && eregi('os', $agent)){
  166. $os = 'SunOS';
  167. }
  168. else if (eregi('ibm', $agent) && eregi('os', $agent)){
  169. $os = 'IBM OS/2';
  170. }
  171. else if (eregi('Mac', $agent) && eregi('PC', $agent)){
  172. $os = 'Macintosh';
  173. }
  174. else if (eregi('PowerPC', $agent)){
  175. $os = 'PowerPC';
  176. }
  177. else if (eregi('AIX', $agent)){
  178. $os = 'AIX';
  179. }
  180. else if (eregi('HPUX', $agent)){
  181. $os = 'HPUX';
  182. }
  183. else if (eregi('NetBSD', $agent)){
  184. $os = 'NetBSD';
  185. }
  186. else if (eregi('BSD', $agent)){
  187. $os = 'BSD';
  188. }
  189. else if (ereg('OSF1', $agent)){
  190. $os = 'OSF1';
  191. }
  192. else if (ereg('IRIX', $agent)){
  193. $os = 'IRIX';
  194. }
  195. else if (eregi('FreeBSD', $agent)){
  196. $os = 'FreeBSD';
  197. }
  198. else if (eregi('teleport', $agent)){
  199. $os = 'teleport';
  200. }
  201. else if (eregi('flashget', $agent)){
  202. $os = 'flashget';
  203. }
  204. else if (eregi('webzip', $agent)){
  205. $os = 'webzip';
  206. }
  207. else if (eregi('offline', $agent)){
  208. $os = 'offline';
  209. }
  210. else {
  211. $os = 'Unknown';
  212. }
  213. return $os;
  214. }
  216. }
  218. //修改自q3boy
  219. class cnStrObj
  220. {
  221. function substrGB ($str = '', $start = '', $len = ''){
  222. if($start == 0 || $start == ''){
  223. $start = 1;
  224. }
  225. if($str == '' || $len == ''){
  226. return false;
  227. }
  228. for($i = 0; $i < $start + $len; $i ++){
  229. $tmpstr = (ord($str[$i]) >= 161 && ord($str[$i]) <= 247&& ord($str[$i+1]) >= 161 && ord($str[$i+1]) <= 254)?$str[$i].$str[++$i]:$tmpstr = $str[$i];
  230. if ($i >= $start && $i < ($start + $len))
  231. {
  232. $tmp .=$tmpstr;
  233. }
  234. }
  235. return $tmp;
  236. }
  238. function isGB ($str)
  239. {
  240. $strLen = strlen($str);
  241. $length = 1;
  242. for($i = 0; $i < $strLen; $i ++) {
  243. $tmpstr = ord(substr($str, $i, 1));
  244. $tmpstr2 = ord(substr($str, $i+1, 1));
  245. if(($tmpstr <= 161 || $tmpstr >= 247) && ($tmpstr2 <= 161 || $tmpstr2 >= 247)){
  246. $legalflag = false;
  247. } else {
  248. $legalflag = true;
  249. }
  250. }
  251. return $legalflag;
  252. }
  253. }
  255. //下载自某e文网站
  256. /***************************************
  257. ** Filename.......: class.smtp.inc
  258. ** Project........: SMTP Class
  259. ** Version........: 1.00b
  260. ** Last Modified..: 30 September 2001
  261. ***************************************/
  263. define('SMTP_STATUS_NOT_CONNECTED', 1, TRUE);
  264. define('SMTP_STATUS_CONNECTED', 2, TRUE);
  266. class smtp{
  268. var $connection;
  269. var $recipients;
  270. var $headers;
  271. var $timeout;
  272. var $errors;
  273. var $status;
  274. var $body;
  275. var $from;
  276. var $host;
  277. var $port;
  278. var $helo;
  279. var $auth;
  280. var $user;
  281. var $pass;
  283. /***************************************
  284. ** Constructor function. Arguments:
  285. ** $params - An assoc array of parameters:
  286. **
  287. ** host - The hostname of the smtp server Default: localhost
  288. ** port - The port the smtp server runs on Default: 25
  289. ** helo - What to send as the HELO command Default: localhost
  290. ** (typically the hostname of the
  291. ** machine this script runs on)
  292. ** auth - Whether to use basic authentication Default: FALSE
  293. ** user - Username for authentication Default:
  294. ** pass - Password for authentication Default:
  295. ** timeout - The timeout in seconds for the call Default: 5
  296. ** to fsockopen()
  297. ***************************************/
  299. function smtp($params = array()){
  301. if(!defined('CRLF'))
  302. define('CRLF', "\r\n", TRUE);
  304. $this->timeout = 5;
  305. $this->status = SMTP_STATUS_NOT_CONNECTED;
  306. $this->host = 'localhost';
  307. $this->port = 25;
  308. $this->helo = 'localhost';
  309. $this->auth = FALSE;
  310. $this->user = '';
  311. $this->pass = '';
  312. $this->errors = array();
  314. foreach($params as $key => $value){
  315. $this->$key = $value;
  316. }
  317. }
  319. /***************************************
  320. ** Connect function. This will, when called
  321. ** statically, create a new smtp object,
  322. ** call the connect function (ie this function)
  323. ** and return it. When not called statically,
  324. ** it will connect to the server and send
  325. ** the HELO command.
  326. ***************************************/
  328. function connect($params = array()){
  330. if(!isset($this->status)){
  331. $obj = new smtp($params);
  332. if($obj->connect()){
  333. $obj->status = SMTP_STATUS_CONNECTED;
  334. }
  336. return $obj;
  338. }else{
  339. $this->connection = fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout);
  340. socket_set_timeout($this->connection, 0, 250000);
  342. $greeting = $this->get_data();
  343. if(is_resource($this->connection)){
  344. return $this->auth ? $this->ehlo() : $this->helo();
  345. }else{
  346. $this->errors[] = 'Failed to connect to server: '.$errstr;
  347. return FALSE;
  348. }
  349. }
  350. }
  352. /***************************************
  353. ** Function which handles sending the mail.
  354. ** Arguments:
  355. ** $params - Optional assoc array of parameters.
  356. ** Can contain:
  357. ** recipients - Indexed array of recipients
  358. ** from - The from address. (used in MAIL FROM,
  359. ** this will be the return path
  360. ** headers - Indexed array of headers, one header per array entry
  361. ** body - The body of the email
  362. ** It can also contain any of the parameters from the connect()
  363. ** function
  364. ***************************************/
  366. function send($params = array()){
  368. foreach($params as $key => $value){
  369. $this->set($key, $value);
  370. }
  372. if($this->is_connected()){
  374. // Do we auth or not? Note the distinction between the auth variable and auth() function
  375. if($this->auth){
  376. if(!$this->auth())
  377. return FALSE;
  378. }
  380. $this->mail($this->from);
  381. if(is_array($this->recipients))
  382. foreach($this->recipients as $value)
  383. $this->rcpt($value);
  384. else
  385. $this->rcpt($this->recipients);
  387. if(!$this->data())
  388. return FALSE;
  390. // Transparency
  391. $headers = str_replace(CRLF.'.', CRLF.'..', trim(implode(CRLF, $this->headers)));
  392. $body = str_replace(CRLF.'.', CRLF.'..', $this->body);
  393. $body = $body[0] == '.' ? '.'.$body : $body;
  395. $this->send_data($headers);
  396. $this->send_data('');
  397. $this->send_data($body);
  398. $this->send_data('.');
  400. return (substr(trim($this->get_data()), 0, 3) === '250');
  401. }else{
  402. $this->errors[] = 'Not connected!';
  403. return FALSE;
  404. }
  405. }
  407. /***************************************
  408. ** Function to implement HELO cmd
  409. ***************************************/
  411. function helo(){
  412. if(is_resource($this->connection)
  413. AND $this->send_data('HELO '.$this->helo)
  414. AND substr(trim($error = $this->get_data()), 0, 3) === '250' ){
  416. return TRUE;
  418. }else{
  419. $this->errors[] = 'HELO command failed, output: ' . trim(substr(trim($error),3));
  420. return FALSE;
  421. }
  422. }
  424. /***************************************
  425. ** Function to implement EHLO cmd
  426. ***************************************/
  428. function ehlo(){
  429. if(is_resource($this->connection)
  430. AND $this->send_data('EHLO '.$this->helo)
  431. AND substr(trim($error = $this->get_data()), 0, 3) === '250' ){
  433. return TRUE;
  435. }else{
  436. $this->errors[] = 'EHLO command failed, output: ' . trim(substr(trim($error),3));
  437. return FALSE;
  438. }
  439. }
  441. /***************************************
  442. ** Function to implement AUTH cmd
  443. ***************************************/
  445. function auth(){
  446. if(is_resource($this->connection)
  447. AND $this->send_data('AUTH LOGIN')
  448. AND substr(trim($error = $this->get_data()), 0, 3) === '334'
  449. AND $this->send_data(base64_encode($this->user)) // Send username
  450. AND substr(trim($error = $this->get_data()),0,3) === '334'
  451. AND $this->send_data(base64_encode($this->pass)) // Send password
  452. AND substr(trim($error = $this->get_data()),0,3) === '235' ){
  454. return TRUE;
  456. }else{
  457. $this->errors[] = 'AUTH command failed: ' . trim(substr(trim($error),3));
  458. return FALSE;
  459. }
  460. }
  462. /***************************************
  463. ** Function that handles the MAIL FROM: cmd
  464. ***************************************/
  466. function mail($from){
  468. if($this->is_connected()
  469. AND $this->send_data('MAIL FROM:<'.$from.'>')
  470. AND substr(trim($this->get_data()), 0, 2) === '250' ){
  472. return TRUE;
  474. }else
  475. return FALSE;
  476. }
  478. /***************************************
  479. ** Function that handles the RCPT TO: cmd
  480. ***************************************/
  482. function rcpt($to){
  484. if($this->is_connected()
  485. AND $this->send_data('RCPT TO:<'.$to.'>')
  486. AND substr(trim($error = $this->get_data()), 0, 2) === '25' ){
  488. return TRUE;
  490. }else{
  491. $this->errors[] = trim(substr(trim($error), 3));
  492. return FALSE;
  493. }
  494. }
  496. /***************************************
  497. ** Function that sends the DATA cmd
  498. ***************************************/
  500. function data(){
  502. if($this->is_connected()
  503. AND $this->send_data('DATA')
  504. AND substr(trim($error = $this->get_data()), 0, 3) === '354' ){
  506. return TRUE;
  508. }else{
  509. $this->errors[] = trim(substr(trim($error), 3));
  510. return FALSE;
  511. }
  512. }
  514. /***************************************
  515. ** Function to determine if this object
  516. ** is connected to the server or not.
  517. ***************************************/
  519. function is_connected(){
  521. return (is_resource($this->connection) AND ($this->status === SMTP_STATUS_CONNECTED));
  522. }
  524. /***************************************
  525. ** Function to send a bit of data
  526. ***************************************/
  528. function send_data($data){
  530. if(is_resource($this->connection)){
  531. return fwrite($this->connection, $data.CRLF, strlen($data)+2);
  532. }else
  533. return FALSE;
  534. }
  536. /***************************************
  537. ** Function to get data.
  538. ***************************************/
  540. function &get_data(){
  542. $return = '';
  543. $line = '';
  545. if(is_resource($this->connection)){
  546. while(strpos($return, CRLF) === FALSE OR substr($line,3,1) !== ' '){
  547. $line = fgets($this->connection, 512);
  548. $return .= $line;
  549. }
  550. return $return;
  552. }else
  553. return FALSE;
  554. }
  556. /***************************************
  557. ** Sets a variable
  558. ***************************************/
  560. function set($var, $value){
  562. $this->$var = $value;
  563. return TRUE;
  564. }
  566. } // End of class
  567. ?>

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