php十个超级有用的PHP代码片段

十个超级有用的php代码片段

[PHP]代码

1. 1. 发送短信
2. 调用 TextMagic API。
4. // Include the TextMagic PHP lib
5. require('textmagic-sms-api-php/TextMagicAPI.php');
7. // Set the username and password information
8. $username = 'myusername';
9. $password = 'mypassword';
11. // Create a new instance of TM
12. $router = new TextMagicAPI(array(
13. 'username' => $username,
14. 'password' => $password
15. ));
17. // Send a text message to '999-123-4567'
18. $result = $router->send('Wake up!', array(9991234567), true);
20. // result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )
22. 2. 根据IP查找地址
24. function detect_city($ip) {
26. $default = 'UNKNOWN';
28. if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost')
29. $ip = '8.8.8.8';
31. $curlopt_useragent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)';
33. $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);
34. $ch = curl_init();
36. $curl_opt = array(
37. CURLOPT_FOLLOWLOCATION => 1,
38. CURLOPT_HEADER => 0,
39. CURLOPT_RETURNTRANSFER => 1,
40. CURLOPT_USERAGENT => $curlopt_useragent,
41. CURLOPT_URL => $url,
42. CURLOPT_TIMEOUT => 1,
43. CURLOPT_REFERER => 'http://' . $_SERVER['HTTP_HOST'],
44. );
46. curl_setopt_array($ch, $curl_opt);
48. $content = curl_exec($ch);
50. if (!is_null($curl_info)) {
51. $curl_info = curl_getinfo($ch);
52. }
54. curl_close($ch);
56. if ( preg_match('{
57. City : ([^<]*)
}i', $content, $regs) ) {
58. $city = $regs[1];
59. }
60. if ( preg_match('{
61. State/Province : ([^<]*)
}i', $content, $regs) ) {
62. $state = $regs[1];
63. }
65. if( $city!='' && $state!='' ){
66. $location = $city . ', ' . $state;
67. return$location;
68. }else{
69. return$default;
70. }
72. }
74. 3. 显示网页的源代码
76. $lines = file('http://google.com/');
77. foreach ($lines as $line_num => $line) {
78. // loop thru each line and prepend line numbers
79. echo "Line #{$line_num} : " . htmlspecialchars($line) . "
    \n";
80. }
82. 4. 检查服务器是否使用HTTPS
84. if ($_SERVER['HTTPS'] != "on") {
85. echo "This is not HTTPS";
86. }else{
87. echo "This is HTTPS";
88. }
90. 5. 显示Faceboo**丝数量
92. function fb_fan_count($facebook_name){
93. // Example: https://graph.facebook.com/digimantra
94. $data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name));
95. echo $data->likes;
96. }
98. 6. 检测图片的主要颜色
100. $i = imagecreatefromjpeg("image.jpg");
102. for ($x=0;$xfor ($y=0;$y$rgb = imagecolorat($i,$x,$y);
103. $r = ($rgb >> 16) & 0xFF;
104. $g = ($rgb >> & 0xFF;
105. $b = $rgb & 0xFF;
107. $rTotal += $r;
108. $gTotal += $g;
109. $bTotal += $b;
110. $total++;
111. }
112. }
114. $rAverage = round($rTotal/$total);
115. $gAverage = round($gTotal/$total);
116. $bAverage = round($bTotal/$total);
118. 7. 获取内存使用信息
120. echo"Initial: ".memory_get_usage()." bytes \n";
121. /* prints
122. Initial: 361400 bytes
123. */
124. // http://www.baoluowanxiang.com/
125. // let's use up some memory
126. for ($i = 0; $i < 100000; $i++) {
127. $array []= md5($i);
128. }
130. // let's remove half of the array
131. for ($i = 0; $i < 100000; $i++) {
132. unset($array[$i]);
133. }
135. echo"Final: ".memory_get_usage()." bytes \n";
136. /* prints
137. Final: 885912 bytes
138. */
140. echo"Peak: ".memory_get_peak_usage()." bytes \n";
141. /* prints
142. Peak: 13687072 bytes
143. */
145. 8. 使用 gzcompress() 压缩数据
147. $string =
148. "Lorem ipsum dolor sit amet, consectetur
149. adipiscing elit. Nunc ut elit id mi ultricies
150. adipiscing. Nulla facilisi. Praesent pulvinar,
151. sapien vel feugiat vestibulum, nulla dui pretium orci,
152. non ultricies elit lacus quis ante. Lorem ipsum dolor
153. sit amet, consectetur adipiscing elit. Aliquam
154. pretium ullamcorper urna quis iaculis. Etiam ac massa
155. sed turpis tempor luctus. Curabitur sed nibh eu elit
156. mollis congue. Praesent ipsum diam, consectetur vitae
157. ornare a, aliquam a nunc. In id magna pellentesque
158. tellus posuere adipiscing. Sed non mi metus, at lacinia
159. augue. Sed magna nisi, ornare in mollis in, mollis
160. sed nunc. Etiam at justo in leo congue mollis.
161. Nullam in neque eget metus hendrerit scelerisque
162. eu non enim. Ut malesuada lacus eu nulla bibendum
163. id euismod urna sodales. ";
165. $compressed = gzcompress($string);
167. echo "Original size: ". strlen($string)."\n";
168. /* prints
169. Original size: 800
170. */
172. echo "Compressed size: ". strlen($compressed)."\n";
173. /* prints
174. Compressed size: 418
175. */
177. // getting it back
178. $original = gzuncompress($compressed);
180. 9. 使用PHP做Whois检查
182. function whois_query($domain) {
184. // fix the domain name:
185. $domain = strtolower(trim($domain));
186. $domain = preg_replace('/^http:\/\//i', '', $domain);
187. $domain = preg_replace('/^www\./i', '', $domain);
188. $domain = explode('/', $domain);
189. $domain = trim($domain[0]);
191. // split the TLD from domain name
192. $_domain = explode('.', $domain);
193. $lst = count($_domain)-1;
194. $ext = $_domain[$lst];
196. // You find resources and lists
197. // like these on wikipedia:
198. //
199. // http://de.wikipedia.org/wiki/Whois
200. //
201. $servers = array(
202. "biz" => "whois.neulevel.biz",
203. "com" => "whois.internic.net",
204. "us" => "whois.nic.us",
205. "coop" => "whois.nic.coop",
206. "info" => "whois.nic.info",
207. "name" => "whois.nic.name",
208. "net" => "whois.internic.net",
209. "gov" => "whois.nic.gov",
210. "edu" => "whois.internic.net",
211. "mil" => "rs.internic.net",
212. "int" => "whois.iana.org",
213. "ac" => "whois.nic.ac",
214. "ae" => "whois.uaenic.ae",
215. "at" => "whois.ripe.net",
216. "au" => "whois.aunic.net",
217. "be" => "whois.dns.be",
218. "bg" => "whois.ripe.net",
219. "br" => "whois.registro.br",
220. "bz" => "whois.belizenic.bz",
221. "ca" => "whois.cira.ca",
222. "cc" => "whois.nic.cc",
223. "ch" => "whois.nic.ch",
224. "cl" => "whois.nic.cl",
225. "cn" => "whois.cnnic.net.cn",
226. "cz" => "whois.nic.cz",
227. "de" => "whois.nic.de",
228. "fr" => "whois.nic.fr",
229. "hu" => "whois.nic.hu",
230. "ie" => "whois.domainregistry.ie",
231. "il" => "whois.isoc.org.il",
232. "in" => "whois.ncst.ernet.in",
233. "ir" => "whois.nic.ir",
234. "mc" => "whois.ripe.net",
235. "to" => "whois.tonic.to",
236. "tv" => "whois.tv",
237. "ru" => "whois.ripn.net",
238. "org" => "whois.pir.org",
239. "aero" => "whois.information.aero",
240. "nl" => "whois.domain-registry.nl"
241. );
243. if (!isset($servers[$ext])){
244. die('Error: No matching nic server found!');
245. }
247. $nic_server = $servers[$ext];
249. $output = '';
251. // connect to whois server:
252. if ($conn = fsockopen ($nic_server, 43)) {
253. fputs($conn, $domain."\r\n");
254. while(!feof($conn)) {
255. $output .= fgets($conn,128);
256. }
257. fclose($conn);
258. }
259. else { die('Error: Could not connect to ' . $nic_server . '!'); }
261. return $output;
262. }
264. 10. 通过Email发送PHP错误
267. // Our custom error handler
268. function nettuts_error_handler($number, $message, $file, $line, $vars){
269. $email = "

270. An error ($number) occurred on line

271. $line and in the file: $file.

272. $message

     ";
274. $email .= "

     " . print_r($vars, 1) . "

     ";
276. $headers = 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
278. // Email the error to someone...
279. error_log($email, 1, 'you@youremail.com', $headers);
281. // Make sure that you decide how to respond to errors (on the user's side)
282. // Either echo an error message, or kill the entire project. Up to you...
283. // The code below ensures that we only "die" if the error was more than
284. // just a NOTICE.
285. if ( ($number !== E_NOTICE) && ($number < 2048) ) {
286. die("There was an error. Please try again later.");
287. }
288. }
290. // We should use our custom function to handle errors.
291. set_error_handler('nettuts_error_handler');
293. // Trigger an error... (var doesn't exist)
294. echo$somevarthatdoesnotexist;