PHP教程
PHP 发送http请求
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);
?>
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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;
?>
<?php
/**
* 发送post请求
* @param string $url 请求地址
* @param array $post_data post键值对数据
* @return string
*/
function send_post($url, $post_data) {
$postdata = http_build_query($post_data);
$options = array(
'http' => array(
'method' => 'POST',
'header' => 'Content-type:application/x-www-form-urlencoded',
'content' => $postdata,
'timeout' => 15 * 60 // 超时时间（单位:s）
)
);
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);
return $result;
}
$post_data = array(
'username' => 'abcdef',
'password' => '123456'
);
send_post('http://xxx.com', $post_data);
<?php
$ch=curl_init('http://www.xxx.com/xx.html');
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_BINARYTRANSFER,true);
$output=curl_exec($ch);
$fh=fopen("out.html",'w');
fwrite($fh,$output);
fclose($fh);
/**
* Socket版本
* 使用方法：
* $post_string = "app=socket&version=beta";
* request_by_socket('blog.snsgou.com', '/restServer.php', $post_string);
*/
function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30) {
$socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);
if (!$socket) die("$errstr($errno)");
fwrite($socket, "POST $remote_path HTTP/1.0");
fwrite($socket, "User-Agent: Socket Example");
fwrite($socket, "HOST: $remote_server");
fwrite($socket, "Content-type: application/x-www-form-urlencoded");
fwrite($socket, "Content-length: " . （strlen($post_string) + 8） . "");
fwrite($socket, "Accept:*/*");
fwrite($socket, "");
fwrite($socket, "mypost=$post_string");
fwrite($socket, "");
$header = "";
while ($str = trim(fgets($socket, 4096))) {
$header .= $str;
}
$data = "";
while (!feof($socket)) {
$data .= fgets($socket, 4096);
}
return $data;
}
方法1: 用 file_get_contents 以get方式获取内容：
<?php$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 $html;?>
方法4：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启
<?phpfunction get_url($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 $result; }}//获取url的html部分，去掉headerfunction GetUrlHTML($url, $cookie = false) { $rowdata = get_url($url, $cookie); if ($rowdata) { $body = stristr($rowdata, ”rnrn”); $body = substr($body, 4, strlen($body)); return $body; } return false;}?>
方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body
<?phpfunction HTTP_Post($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;?>
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