直接拿来用,超实用的PHP代码片段(二)_PHP教程
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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)
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。
- 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;
- }
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。
- the TextMagic PHP lib
- require('textmagic-sms-api-php/TextMagicAPI.php');
- // Set the username and password information
- $username = 'myusername';
- $password = 'mypassword';
- // Create a new instance of TM
- $router = new TextMagicAPI(array(
- 'username' => $username,
- 'password' => $password
- ));
- // Send a text message to '999-123-4567'
- $result = $router->send('Wake up!', array(9991234567), true);
- // result: Result is: Array ( [messages] => Array ( [19896128] => 9991234567 ) [sent_text] => Wake up! [parts_count] => 1 )
3) Get info about your memory usage——获取内存使用率
这段代码帮助你获取内存使用率。
- echo "Initial: ".memory_get_usage()." bytes \n";
- /* prints
- Initial: 361400 bytes
- */
- // let's use up some memory
- for ($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
- */
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。
- $line) {
- // loop thru each line and prepend line numbers
- echo "Line #{$line_num} : " . htmlspecialchars($line) . "
- \n";
- }
5) Create data uri’s——创建数据uri
通过使用此代码,你可以创建数据Uri,这对在HTML/CSS中嵌入图片非常有用,可帮助节省HTTP请求。
- function data_uri($file, $mime) {
- $contents=file_get_contents($file);
- $base64=base64_encode($contents);
- echo "data:$mime;base64,$base64";
- }
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。
- function detect_city($ip) {
- $default = 'UNKNOWN';
- if (!is_string($ip) || strlen($ip) 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 $default; } }
7) Detect browser language——查看浏览器语言
检测浏览器使用的代码脚本语言。
- function get_client_language($availableLanguages, $default='en'){
- if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
- $langs=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
- foreach ($langs as $value){
- $choice=substr($value,0,2);
- if(in_array($choice, $availableLanguages)){
- return $choice;
- }
- }
- }
- return $default;
- }
8) Check if server is HTTPS——检测服务器是否是HTTPS
- if ($_SERVER['HTTPS'] != "on") {
- echo "This is not HTTPS";
- }else{
- echo "This is HTTPS";
- }
9) Generate CSV file from a PHP array——在PHP数组中生成.csv 文件
- function generateCsv($data, $delimiter = ',', $enclosure = '"') {
- $handle = fopen('php://temp', 'r+');
- foreach ($data as $line) {
- fputcsv($handle, $line, $delimiter, $enclosure);
- }
- rewind($handle);
- while (!feof($handle)) {
- $contents .= fread($handle, 8192);
- }
- fclose($handle);
- return $contents;
- }