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直接拿来用,超实用的PHP代码片段(二)_PHP教程

程序员文章站 2022-05-21 16:00:41
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每位程序员和开发者都喜欢讨论他们最爱的代码片段,尤其是当PHP开发者花费数个小时为网页编码或创建应用时,他们更知道这些代码的重要性。为了节约编码时间,笔者收集了一些较为实用的代码片段,帮助开发者提高工作效率。>>> 点击查看PHP代码片段(一)

直接拿来用,超实用的PHP代码片段(二)_PHP教程

1) Whois query using PHP ——利用PHP获取Whois请求

利用这段代码,在特定的域名里可获得whois信息。把域名名称作为参数,并显示所有域名的相关信息。


  1. function whois_query($domain) {
  2. // fix the domain name:
  3. $domain = strtolower(trim($domain));
  4. $domain = preg_replace('/^http:\/\//i', '', $domain);
  5. $domain = preg_replace('/^www\./i', '', $domain);
  6. $domain = explode('/', $domain);
  7. $domain = trim($domain[0]);
  8. // split the TLD from domain name
  9. $_domain = explode('.', $domain);
  10. $lst = count($_domain)-1;
  11. $ext = $_domain[$lst];
  12. // You find resources and lists
  13. // like these on wikipedia:
  14. //
  15. // http://de.wikipedia.org/wiki/Whois
  16. //
  17. $servers = array(
  18. "biz" => "whois.neulevel.biz",
  19. "com" => "whois.internic.net",
  20. "us" => "whois.nic.us",
  21. "coop" => "whois.nic.coop",
  22. "info" => "whois.nic.info",
  23. "name" => "whois.nic.name",
  24. "net" => "whois.internic.net",
  25. "gov" => "whois.nic.gov",
  26. "edu" => "whois.internic.net",
  27. "mil" => "rs.internic.net",
  28. "int" => "whois.iana.org",
  29. "ac" => "whois.nic.ac",
  30. "ae" => "whois.uaenic.ae",
  31. "at" => "whois.ripe.net",
  32. "au" => "whois.aunic.net",
  33. "be" => "whois.dns.be",
  34. "bg" => "whois.ripe.net",
  35. "br" => "whois.registro.br",
  36. "bz" => "whois.belizenic.bz",
  37. "ca" => "whois.cira.ca",
  38. "cc" => "whois.nic.cc",
  39. "ch" => "whois.nic.ch",
  40. "cl" => "whois.nic.cl",
  41. "cn" => "whois.cnnic.net.cn",
  42. "cz" => "whois.nic.cz",
  43. "de" => "whois.nic.de",
  44. "fr" => "whois.nic.fr",
  45. "hu" => "whois.nic.hu",
  46. "ie" => "whois.domainregistry.ie",
  47. "il" => "whois.isoc.org.il",
  48. "in" => "whois.ncst.ernet.in",
  49. "ir" => "whois.nic.ir",
  50. "mc" => "whois.ripe.net",
  51. "to" => "whois.tonic.to",
  52. "tv" => "whois.tv",
  53. "ru" => "whois.ripn.net",
  54. "org" => "whois.pir.org",
  55. "aero" => "whois.information.aero",
  56. "nl" => "whois.domain-registry.nl"
  57. );
  58. if (!isset($servers[$ext])){
  59. die('Error: No matching nic server found!');
  60. }
  61. $nic_server = $servers[$ext];
  62. $output = '';
  63. // connect to whois server:
  64. if ($conn = fsockopen ($nic_server, 43)) {
  65. fputs($conn, $domain."\r\n");
  66. while(!feof($conn)) {
  67. $output .= fgets($conn,128);
  68. }
  69. fclose($conn);
  70. }
  71. else { die('Error: Could not connect to ' . $nic_server . '!'); }
  72. return $output;
  73. }

2) Text messaging with PHP using the TextMagic API ——使用TextMagic API 获取PHP Test信息

TextMagic引入强大的核心API,可轻松将SMS发送到手机。该API是需要付费。


  1. the TextMagic PHP lib
  2. require('textmagic-sms-api-php/TextMagicAPI.php');
  3. // Set the username and password information
  4. $username = 'myusername';
  5. $password = 'mypassword';
  6. // Create a new instance of TM
  7. $router = new TextMagicAPI(array(
  8. 'username' => $username,
  9. 'password' => $password
  10. ));
  11. // Send a text message to '999-123-4567'
  12. $result = $router->send('Wake up!', array(9991234567), true);
  13. // result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )

3) Get info about your memory usage——获取内存使用率

这段代码帮助你获取内存使用率。


  1. echo "Initial: ".memory_get_usage()." bytes \n";
  2. /* prints
  3. Initial: 361400 bytes
  4. */
  5. // let's use up some memory
  6. for ($i = 0; $i
  7. $array []= md5($i);
  8. }
  9. // let's remove half of the array
  10. for ($i = 0; $i
  11. unset($array[$i]);
  12. }
  13. echo "Final: ".memory_get_usage()." bytes \n";
  14. /* prints
  15. Final: 885912 bytes
  16. */
  17. echo "Peak: ".memory_get_peak_usage()." bytes \n";
  18. /* prints
  19. Peak: 13687072 bytes
  20. */

4) Display source code of any webpage——查看任意网页源代码

如果你想查看网页源代码,那么只需更改第二行的URL,源代码就会在网页上显示出。


  1. $line) {
  2. // loop thru each line and prepend line numbers
  3. echo "Line #{$line_num} : " . htmlspecialchars($line) . "
  4. \n";
  5. }

5) Create data uri’s——创建数据uri

通过使用此代码,你可以创建数据Uri,这对在HTML/CSS中嵌入图片非常有用,可帮助节省HTTP请求。


  1. function data_uri($file, $mime) {
  2. $contents=file_get_contents($file);
  3. $base64=base64_encode($contents);
  4. echo "data:$mime;base64,$base64";
  5. }

6) Detect location by IP——通过IP检索出地理位置

这段代码帮助你查找特定的IP,只需在功能参数上输入IP,就可检测出位置。


  1. function detect_city($ip) {
  2. $default = 'UNKNOWN';
  3. if (!is_string($ip) || strlen($ip) 1,
  4. CURLOPT_HEADER => 0,
  5. CURLOPT_RETURNTRANSFER => 1,
  6. CURLOPT_USERAGENT => $curlopt_useragent,
  7. CURLOPT_URL => $url,
  8. CURLOPT_TIMEOUT => 1,
  9. CURLOPT_REFERER => 'http://' . $_SERVER['HTTP_HOST'],
  10. );
  11. curl_setopt_array($ch, $curl_opt);
  12. $content = curl_exec($ch);
  13. if (!is_null($curl_info)) {
  14. $curl_info = curl_getinfo($ch);
  15. }
  16. curl_close($ch);
  17. if ( preg_match('{
  18. City : ([^
  19. }i’, $content, $regs) ) { $city = $regs[1]; } if ( preg_match(‘{
  20. State/Province : ([^
  21. }i’, $content, $regs) ) { $state = $regs[1]; } if( $city!=” && $state!=” ){ $location = $city . ‘, ‘ . $state; return $location; }else{ return $default; } }

7) Detect browser language——查看浏览器语言

检测浏览器使用的代码脚本语言。


  1. function get_client_language($availableLanguages, $default='en'){
  2. if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
  3. $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
  4. foreach ($langs as $value){
  5. $choice=substr($value,0,2);
  6. if(in_array($choice, $availableLanguages)){
  7. return $choice;
  8. }
  9. }
  10. }
  11. return $default;
  12. }

8) Check if server is HTTPS——检测服务器是否是HTTPS


  1. if ($_SERVER['HTTPS'] != "on") {
  2. echo "This is not HTTPS";
  3. }else{
  4. echo "This is HTTPS";
  5. }

9) Generate CSV file from a PHP array——在PHP数组中生成.csv 文件

  1. function generateCsv($data, $delimiter = ',', $enclosure = '"') {
  2. $handle = fopen('php://temp', 'r+');
  3. foreach ($data as $line) {
  4. fputcsv($handle, $line, $delimiter, $enclosure);
  5. }
  6. rewind($handle);
  7. while (!feof($handle)) {
  8. $contents .= fread($handle, 8192);
  9. }
  10. fclose($handle);
  11. return $contents;
  12. }
英文出自:Designzum

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