分享几个非常有用的PHP代码片段

2024-06-19 07:08

本文主要是介绍分享几个非常有用的PHP代码片段,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!

  调用 TextMagic++ API。
  // Include the TextMagicPHP lib
  require('textmagic-sms-api-php/TextMagicAPI.php');
  // Set the username andpassword information
  $username = 'myusername';
  $password = 'mypassword';
  // Create a new instanceof TM
  $router = new TextMagicAPI(array(
  'username' =>$username,
  'password' =>$password
  ));
  // Send a text message to '999-123-4567'
  $result =$router->send('Wake up!', array(9991234567), true);
  // result: Result is: Array( [messages] => Array ( [19896128] => 9991234567)[sent_text] => Wake up! [parts_count] => 1 )
  2. 根据IP查找地址
  function detect_city($ip){
  $default = 'UNKNOWN';
  if (!is_string($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,
  CURLOPT_HEADER => 0,
  CURLOPT_RETURNTRANSFER=> 1,
  CURLOPT_USERAGENT=> $curlopt_useragent,
  CURLOPT_URL => $url,
  CURLOPT_TIMEOUT => 1,
  CURLOPT_REFERER => 'http://' .$_SERVER['HTTP_HOST'],
  );
  curl_setopt_array($ch,$curl_opt);
  $content = curl_exec($ch);
  if (!is_null($curl_info)) {
  $curl_info = curl_getinfo($ch);
  }
  curl_close($ch);
  if ( preg_match('{
  City : ([^<]*)
  }i', $content, $regs) ) {
  $city = $regs[1];
  }
  if ( preg_match('{
  State/Province : ([^<]*)
  }i', $content, $regs) ) {
  $state = $regs[1];
  }
  if( $city!='' && $state!=''){
  $location = $city . ', ' .$state;
  return $location;
  }else{
  return $default;
  }
  }
  3. 显示网页的源代码
  $lines = file('http://google.com/');
  foreach ($lines as$line_num => $line) {
  // loop thru each line and prepend line numbers
  echo "Line # {$line_num} : " . htmlspecialchars($line) . "
\n";
  }
  4. 检查服务器是否使用HTTPS
  if ($_SERVER['HTTPS']!= "on") {
  echo "This is not HTTPS";
  }else{
  echo "This is HTTPS";
  }
  5. 显示Facebook粉丝数量
  function fb_fan_count($facebook_name){
  // Example: https://graph.facebook.com/digimantra
  $data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name));
  echo $data->likes;
  }
  6. 检测图片的主要颜色
  $i = imagecreatefromjpeg("image.jpg");
  for ($x=0;$x
  for ($y=0;$y
  $rgb = imagecolorat($i,$x,$y);
  $r = ($rgb >> 16) & 0xFF;
  $g = ($rgb >> & 0xFF;
  $b = $rgb & 0xFF;
  $rTotal += $r;
  $gTotal += $g;
  $bTotal += $b;
  $total++;
  }
  }
  $rAverage = round($rTotal/$total);
  $gAverage = round($gTotal/$total);
  $bAverage = round($bTotal/$total);
  7. 获取内存使用信息
  echo "Initial:".memory_get_usage()." bytes \n";
  /* prints
  Initial: 361400 bytes
  */
  // let's use up some memory
  for ($i = 0; $i < 100000;$i++) {
  $array []= md5($i);
  }
  // let's remove half of the array
  for ($i = 0; $i < 100000;$i++) {
  unset($array[$i]);
  }
  echo "Final:".memory_get_usage()." bytes \n";
  /* prints
  Final: 885912 bytes
  */
  echo "Peak:".memory_get_peak_usage()." bytes \n";
  /* prints
  Peak: 13687072 bytes
  */
  8. 使用 gzcompress() 压缩数据
  $string =
  "Lorem ipsum dolor sit amet, consectetur
  adipiscing elit. Nunc ut elit id mi ultricies
  adipiscing. Nulla facilisi. Praesent pulvinar,
  sapien vel feugiat vestibulum, nulla dui pretiumorci,
  non ultricies elit lacus quis ante. Lorem ipsum dolor
  sit amet, consectetur adipiscing elit. Aliquam
  pretium ullamcorper urna quis iaculis. Etiam ac massa
  sed turpis tempor luctus.Curabitur sed nibh eu elit
  mollis congue. Praesent ipsum diam, consectetur vitae
  ornare a, aliquam a nunc. In id magna pellentesque
  tellus posuere adipiscing. Sed non mi metus, at lacinia
  augue. Sed magna nisi, ornare in mollis in, mollis
  sed nunc. Etiam at justoin leo congue mollis.
  Nullam in neque eget metus hendrerit scelerisque
  eu non enim. Ut malesuada lacus eu nulla bibendum
  id euismod urna sodales.";
  $compressed = gzcompress($string);
  echo "Original size: ". strlen($string)."\n";
  /* prints
  Original size: 800
  */
  echo "Compressed size:". strlen($compressed)."\n";
  /* prints
  Compressed size: 418
  */
  // getting it back
  $original = gzuncompress($compressed);
  9. 使用PHP做Whois检查
  function whois_query($domain) {
  // fix the domain name:
  $domain = strtolower(trim($domain));
  $domain = preg_replace('/^http:\/\//i', '', $domain);
  $domain = preg_replace('/^www\./i', '',$domain);
  $domain = explode('/',$domain);
  $domain = trim($domain[0]);
  // split the TLD from domain name
  $_domain = explode('.',$domain);
  $lst = count($_domain)-1;
  $ext = $_domain[$lst];
  // You find resources and lists
  // like these on wikipedia:
  //
  // http://de.wikipedia.org/wiki/Whois
  //
  $servers = array(
  "biz" =>"whois.neulevel.biz",
  "com" =>"whois.internic.net",
  "us" => "whois.nic.us",
  "coop" =>"whois.nic.coop",
  "info" =>"whois.nic.info",
  "name" =>"whois.nic.name",
  "net" =>"whois.internic.net",
  "gov" =>"whois.nic.gov",
  "edu" =>"whois.internic.net",
  "mil" =>"rs.internic.net",
  "int" =>"whois.iana.org",
  "ac" => "whois.nic.ac",
  "ae" =>"whois.uaenic.ae",
  "at" => "whois.ripe.net",
  "au" =>"whois.aunic.net",
  "be" => "whois.dns.be",
  "bg" =>"whois.ripe.net",
  "br" =>"whois.registro.br",
  "bz" =>"whois.belizenic.bz",
  "ca" => "whois.cira.ca",
  "cc" => "whois.nic.cc",
  "ch" => "whois.nic.ch",
  "cl" => "whois.nic.cl",
  "cn" =>"whois.cnnic.net.cn",
  "cz" => "whois.nic.cz",
  "de" => "whois.nic.de",
  "fr" => "whois.nic.fr",
  "hu" => "whois.nic.hu",
  "ie" =>"whois.domainregistry.ie",
  "il" =>"whois.isoc.org.il",
  "in" =>"whois.ncst.ernet.in",
  "ir" => "whois.nic.ir",
  "mc" =>"whois.ripe.net",
  "to" =>"whois.tonic.to",
  "tv" => "whois.tv",
  "ru" =>"whois.ripn.net",
  "org" => "whois.pir.org",
  "aero" =>"whois.information.aero",
  "nl" => "whois.domain-registry.nl"
  );
  if (!isset($servers[$ext])){
  die('Error: No matching nic server found!');
  }
  $nic_server =$servers[$ext];
  $output = '';
  // connect to whois server:
  if ($conn = fsockopen ($nic_server, 43)) {
  fputs($conn,$domain."\r\n");
  while(!feof($conn)) {
  $output .= fgets($conn,128);
  }
  fclose($conn);
  }
  else { die('Error: Could not connect to ' . $nic_server. '!'); }
  return $output;
  }
  10. 通过Email发送PHP错误
  // Our custom error handler
  function nettuts_error_handler($number, $message, $file, $line,$vars){
  $email = "
An error ($number) occurred on line
$line and in the file: $file.
$message
";
  $email .= "
" . print_r($vars, 1) . "
";
  $headers = 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
  // Email the error to someone...
  error_log($email, 1, 'you@youremail.com',$headers);
  // Make sure that you decide how to respond to errors (on the user's side)
  // Either echo an error message, or kill the entire project. Up to you...
  // The code below ensures that we only "die" if the error was more than
  // just a NOTICE.
  if ( ($number !== E_NOTICE) && ($number < 2048) ) {
  die("There was an error.Please try again later.");
  }
  }
  // We should use our custom function to handle errors.
  set_error_handler('nettuts_error_handler');
  // Trigger an error... (vardoesn't exist)
  echo$somevarthatdoesnotexist;

原文地址:http://bbs.lampbrother.net/read-htm-tid-119002.html

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