PHP发送HTTP请求的6种方法
方法1: 用 file_get_contents 以get方式获取内容: <?php $url = 'https://wenda.shukaiming.com/'; echo file_get_contents($url); ?> 1 2 3 4 方法2: 用fopen打开url, 以get方式获取内容: <?php //r标识read,即标识只读 $fp = fopen($url, 'r'); stream_get_meta_data($fp); while (!feof($fp)) { $body.= fgets($fp, 1024); } echo $body; fclose($fp); ?> 方法3:用 file_get_contents函数,以post方式获取url <?php $data = array(‘foo' => ‘bar'); $data = http_build_query($data); $opts = array('http' => array('method' => 'POST', 'header' => 'Content-type: application/x-www-form-urlencodedrn' . 'Content-Length: ' . strlen($data) . '\r\n', 'content' => $data)); $context = stream_context_create($opts); $html = file_get_contents('https://wenda.shukaming.com', false, $context); echo $html; ?> 方法4:用fsockopen函数打开url,以get方式获取完整的数据,包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启 <?php function get_url($url, $cookie = false) { $url = parse_url($url); $query = $url[path] . ” ? ” . $url[query]; echo $query; $fp = fsockopen($url[host], $url[port] ? $url[port] : 80, $errno, $errstr, 30); if (!$fp) { return false; } else { $request = "GET $query HTTP/1.1\r\n"; $request.= "Host: $url[host]\r\n"; $request.= "Connection: Close\r\n"; if ($cookie) $request.= "Cookie: $cookien"; $request.= "\r\n"; fwrite($fp, $request); while (!@feof($fp)) { $result.= @fgets($fp, 1024); } fclose($fp); return $result; } } //获取url的html部分,去掉header function GetUrlHTML($url, $cookie = false) { $rowdata = get_url($url, $cookie); if ($rowdata) { $body = stristr($rowdata, ”rnrn”); $body = substr($body, 4, strlen($body)); return $body; } return false; } ?> 方法5:用fsockopen函数打开url,以POST方式获取完整的数据,包括header和body <?php function HTTP_Post($URL, $data, $cookie, $referrer = "") { // parsing the given URL $URL_Info = parse_url($URL); // Building referrer if ($referrer == "") // if not given use this script as referrer $referrer = "111"; // making string from $data foreach ($data as $key => $value) $values[] = "$key=" . urlencode($value); $data_string = implode("&", $values); // Find out which port is needed – if not given use standard (=80) if (!isset($URL_Info["port"])) $URL_Info["port"] = 80; // building POST-request: $request.= "POST " . $URL_Info["path"] . " HTTP/1.1\n"; $request.= "Host: " . $URL_Info["host"] . "\n"; $request.= "Referer: $referer\n"; $request.= "Content-type: application/x-www-form-urlencodedn"; $request.= "Content-length: " . strlen($data_string) . "\n"; $request.= "Connection: closen"; $request.= "Cookie: $cookien"; $request.= "\n"; $request.= $data_string . "\n"; $fp = fsockopen($URL_Info["host"], $URL_Info["port"]); fputs($fp, $request); while (!feof($fp)) { $result.= fgets($fp, 1024); } fclose($fp); return $result; } ?> 方法6:使用curl库,使用curl库之前,可能需要查看一下php.ini是否已经打开了curl扩展 <?php $ch = curl_init(); $timeout = 5; curl_setopt($ch, CURLOPT_URL, 'http://wenda.shukaiming.com'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); echo $file_contents; ?>