分享几个非常有用的PHP代码片段_PHP教程-PHP-Tutorial-php.cn

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) 　　$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 　　$array []= md5($i);
　　}
　　// let's remove half of the array
　　for ($i = 0; $i 　　unset($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) && ($number 　　die("There was an error.Please try again later.");
　　}
　　}
　　// We should use our custom function to handle errors.
　　set_error_handler('nettuts_error_handler');
　　// Trigger an error... (vardoesn't exist)
　　echo$somevarthatdoesnotexist;

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