Home Backend Development PHP Tutorial Use it directly, super practical PHP code snippets (2)_PHP tutorial

Use it directly, super practical PHP code snippets (2)_PHP tutorial

Jul 13, 2016 am 10:35 AM
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Every programmer and developer loves to discuss their favorite snippets of code, especially when PHP developers spend hours coding web pages or creating applications. In order to save coding time, the author has collected some more practical code snippets to help developers improve work efficiency. >>> Click to view the PHP code snippet (1)

Use it directly, super practical PHP code snippets (2)_PHP tutorial

1) Whois query using PHP——Use PHP to obtain Whois request

Using this code, whois information can be obtained in a specific domain name. Take the domain name as a parameter and display information about all domain names.


 
  1. function whois_query($domain) {  
  2.   
  3.     // fix the domain name:  
  4.     $domain = strtolower(trim($domain));  
  5.     $domain = preg_replace('/^http:///i', '', $domain);  
  6.     $domain = preg_replace('/^www./i', '', $domain);  
  7.     $domain = explode('/', $domain);  
  8.     $domain = trim($domain[0]);  
  9.   
  10.     // split the TLD from domain name  
  11.     $_domain = explode('.', $domain);  
  12.     $lst = count($_domain)-1;  
  13.     $ext = $_domain[$lst];  
  14.   
  15.     // You find resources and lists   
  16.     // like these on wikipedia:   
  17.     //  
  18.     // http://de.wikipedia.org/wiki/Whois  
  19.     //  
  20.     $servers = array(  
  21.         "biz" => "whois.neulevel.biz",  
  22.         "com" => "whois.internic.net",  
  23.         "us" => "whois.nic.us",  
  24.         "coop" => "whois.nic.coop",  
  25.         "info" => "whois.nic.info",  
  26.         "name" => "whois.nic.name",  
  27.         "net" => "whois.internic.net",  
  28.         "gov" => "whois.nic.gov",  
  29.         "edu" => "whois.internic.net",  
  30.         "mil" => "rs.internic.net",  
  31.         "int" => "whois.iana.org",  
  32.         "ac" => "whois.nic.ac",  
  33.         "ae" => "whois.uaenic.ae",  
  34.         "at" => "whois.ripe.net",  
  35.         "au" => "whois.aunic.net",  
  36.         "be" => "whois.dns.be",  
  37.         "bg" => "whois.ripe.net",  
  38.         "br" => "whois.registro.br",  
  39.         "bz" => "whois.belizenic.bz",  
  40.         "ca" => "whois.cira.ca",  
  41.         "cc" => "whois.nic.cc",  
  42.         "ch" => "whois.nic.ch",  
  43.         "cl" => "whois.nic.cl",  
  44.         "cn" => "whois.cnnic.net.cn",  
  45.         "cz" => "whois.nic.cz",  
  46.         "de" => "whois.nic.de",  
  47.         "fr" => "whois.nic.fr",  
  48.         "hu" => "whois.nic.hu",  
  49.         "ie" => "whois.domainregistry.ie",  
  50.         "il" => "whois.isoc.org.il",  
  51.         "in" => "whois.ncst.ernet.in",  
  52.         "ir" => "whois.nic.ir",  
  53.         "mc" => "whois.ripe.net",  
  54.         "to" => "whois.tonic.to",  
  55.         "tv" => "whois.tv",  
  56.         "ru" => "whois.ripn.net",  
  57.         "org" => "whois.pir.org",  
  58.         "aero" => "whois.information.aero",  
  59.         "nl" => "whois.domain-registry.nl"  
  60.     );  
  61.   
  62.     if (!isset($servers[$ext])){  
  63.         die('Error: No matching nic server found!');  
  64.     }  
  65.   
  66.     $nic_server = $servers[$ext];  
  67.   
  68.     $output = '';  
  69.   
  70.     // connect to whois server:  
  71.     if ($conn = fsockopen ($nic_server, 43)) {  
  72.         fputs($conn, $domain."rn");  
  73.         while(!feof($conn)) {  
  74.             $output .= fgets($conn,128);  
  75.         }  
  76.         fclose($conn);  
  77.     }  
  78.     else { die('Error: Could not connect to ' . $nic_server . '!'); }  
  79.   
  80.     return $output;  
  81. }  

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.   
  4. // Set the username and password information  
  5. $username = 'myusername';  
  6. $password = 'mypassword';  
  7.   
  8. // Create a new instance of TM  
  9. $router = new TextMagicAPI(array(  
  10.     'username' => $username,  
  11.     'password' => $password  
  12. ));  
  13.   
  14. // Send a text message to '999-123-4567'  
  15. $result = $router->send('Wake up!', array(9991234567), true);  
  16.   
  17. // 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.   
  6. // let's use up some memory  
  7. for ($i = 0; $i < 100000; $i++) {
  8. $array []= md5($i);
  9. }
  10. // let's remove half of the array
  11. for ($i = 0; $i < 100000; $i++) {
  12. unset($array[$i]);
  13. }
  14. echo "Final: ".memory_get_usage()." bytes \n";
  15. /* prints
  16. Final: 885912 bytes
  17. */
  18. echo "Peak: ".memory_get_peak_usage()." bytes \n";
  19. /* prints
  20. Peak: 13687072 bytes
  21. */

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.   
  3.         $default = 'UNKNOWN';  
  4.   
  5.         if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost') $ip = '8.8.8.8'; $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)'; $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip); $ch = curl_init(); $curl_opt = array( CURLOPT_FOLLOWLOCATION => 1,  
  6.             CURLOPT_HEADER      => 0,  
  7.             CURLOPT_RETURNTRANSFER  => 1,  
  8.             CURLOPT_USERAGENT   => $curlopt_useragent,  
  9.             CURLOPT_URL       => $url,  
  10.             CURLOPT_TIMEOUT         => 1,  
  11.             CURLOPT_REFERER         => 'http://' . $_SERVER['HTTP_HOST'],  
  12.         );  
  13.   
  14.         curl_setopt_array($ch, $curl_opt);  
  15.   
  16.         $content = curl_exec($ch);  
  17.   
  18.         if (!is_null($curl_info)) {  
  19.             $curl_info = curl_getinfo($ch);  
  20.         }  
  21.   
  22.         curl_close($ch);  
  23.   
  24.         if ( preg_match('{  
  25. City : ([^<]*)  
  26. }i’, $content, $regs) ) { $city = $regs[1]; } if ( preg_match(‘{  
  27.   
  28. State/Province : ([^<]*)  
  29.    
  30. }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.   
  5.         foreach ($langs as $value){  
  6.             $choice=substr($value,0,2);  
  7.             if(in_array($choice, $availableLanguages)){  
  8.                 return $choice;  
  9.             }  
  10.         }  
  11.     }   
  12.     return $default;  
  13. }  

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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