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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                提供一系列聯網函數 * [預定義常量](https://www.php.net/manual/zh/network.constants.php) * [網絡 函數](https://www.php.net/manual/zh/ref.network.php) * [checkdnsrr](https://www.php.net/manual/zh/function.checkdnsrr.php)— 給指定的主機(域名)或者IP地址做DNS通信檢查 * [closelog](https://www.php.net/manual/zh/function.closelog.php)— 關閉系統日志鏈接 * [define\_syslog\_variables](https://www.php.net/manual/zh/function.define-syslog-variables.php)— 初始化所有與syslog相關的變量 * [dns\_check\_record](https://www.php.net/manual/zh/function.dns-check-record.php)— 別名 checkdnsrr * [dns\_get\_mx](https://www.php.net/manual/zh/function.dns-get-mx.php)— 別名 getmxrr * [dns\_get\_record](https://www.php.net/manual/zh/function.dns-get-record.php)— 獲取指定主機的DNS記錄 * [fsockopen](https://www.php.net/manual/zh/function.fsockopen.php)— 打開一個網絡連接或者一個Unix套接字連接 * [gethostbyaddr](https://www.php.net/manual/zh/function.gethostbyaddr.php)— 獲取指定的IP地址對應的主機名 * [gethostbyname](https://www.php.net/manual/zh/function.gethostbyname.php)— 返回主機名對應的 IPv4地址。 * [gethostbynamel](https://www.php.net/manual/zh/function.gethostbynamel.php)— 獲取互聯網主機名對應的 IPv4 地址列表 * [gethostname](https://www.php.net/manual/zh/function.gethostname.php)— 獲取主機名 * [getmxrr](https://www.php.net/manual/zh/function.getmxrr.php)— 獲取互聯網主機名對應的 MX 記錄 * [getprotobyname](https://www.php.net/manual/zh/function.getprotobyname.php)— 獲取與協議名稱關聯的協議編號 * [getprotobynumber](https://www.php.net/manual/zh/function.getprotobynumber.php)— 獲取與協議號關聯的協議名 * [getservbyname](https://www.php.net/manual/zh/function.getservbyname.php)— 獲取互聯網服務協議對應的端口 * [getservbyport](https://www.php.net/manual/zh/function.getservbyport.php)— 獲取與端口和協議相對應的Internet服務 * [header\_register\_callback](https://www.php.net/manual/zh/function.header-register-callback.php)— 調用一個 header 函數 * [header\_remove](https://www.php.net/manual/zh/function.header-remove.php)— 刪除之前設置的 HTTP 頭 * [header](https://www.php.net/manual/zh/function.header.php)— 發送原生 HTTP 頭 * [headers\_list](https://www.php.net/manual/zh/function.headers-list.php)— 返回已發送的 HTTP 響應頭(或準備發送的) * [headers\_sent](https://www.php.net/manual/zh/function.headers-sent.php)— 檢測 HTTP 頭是否已經發送 * [http\_response\_code](https://www.php.net/manual/zh/function.http-response-code.php)— 獲取/設置響應的 HTTP 狀態碼 * [inet\_ntop](https://www.php.net/manual/zh/function.inet-ntop.php)— 將壓縮的internet地址轉換為人類可讀的表示形式 * [inet\_pton](https://www.php.net/manual/zh/function.inet-pton.php)— 將人類可讀的IP地址轉換為其壓縮在/\_addr中的表示形式 * [ip2long](https://www.php.net/manual/zh/function.ip2long.php)— 將 IPV4 的字符串互聯網協議轉換成長整型數字 * [long2ip](https://www.php.net/manual/zh/function.long2ip.php)— 將長整型轉化為字符串形式帶點的互聯網標準格式地址(IPV4) * [openlog](https://www.php.net/manual/zh/function.openlog.php)— 打開到系統記錄器的連接 * [pfsockopen](https://www.php.net/manual/zh/function.pfsockopen.php)— 打開一個持久的網絡連接或者Unix套接字連接。 * [setcookie](https://www.php.net/manual/zh/function.setcookie.php)— 發送 Cookie * [setrawcookie](https://www.php.net/manual/zh/function.setrawcookie.php)— 發送未經 URL 編碼的 cookie * [socket\_get\_status](https://www.php.net/manual/zh/function.socket-get-status.php)— 別名 stream\_get\_meta\_data * [socket\_set\_blocking](https://www.php.net/manual/zh/function.socket-set-blocking.php)— 別名 stream\_set\_blocking * [socket\_set\_timeout](https://www.php.net/manual/zh/function.socket-set-timeout.php)— 別名 stream\_set\_timeout * [syslog](https://www.php.net/manual/zh/function.syslog.php)— 生成系統日志消息 [getprotobyname](https://www.php.net/manual/zh/function.getprotobyname.php)— 獲取與協議名稱關聯的協議編號 ``` //getprotobyname()給出本地系統上給定協議名稱的協議號 $arr=array("ip","icmp","ggp","tcp", "egp","pup","udp","hmp","xns-idp", "rdp","rvd" ); //Reads the names of protocols into an array.. for($i=0;$i<11;$i++) { $proname=$arr[$i]; echo $proname .":", getprotobyname ($proname)."<br />"; } 結果: ip:0 icmp:1 ggp:3 tcp:6 egp:8 pup:12 udp:17 hmp:20 xns-idp:22 rdp:27 rvd:66 ``` [getservbyname](https://www.php.net/manual/zh/function.getservbyname.php)— 獲取互聯網服務協議對應的端口 ``` $services = array('http', 'ftp', 'ssh', 'telnet', 'imap', 'smtp', 'nicname', 'gopher', 'finger', 'pop3', 'www'); foreach ($services as $service) { $port = getservbyname($service, 'tcp'); echo $service . ": " . $port . "<br />\n"; } ``` [gethostbyname](https://www.php.net/manual/zh/function.gethostbyname.php)— 返回主機名對應的 IPv4地址。 [gethostbynamel](https://www.php.net/manual/zh/function.gethostbynamel.php)— 獲取互聯網主機名對應的 IPv4 地址列表 ``` $address?=?gethostbyname('www.example.com'); ```
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