php发送post请求的三种方法

/** * 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; } //使用方法 $post_data = array(   'username' => 'stclair2201',   'password' => 'handan' ); send_post('https://www.jb51.net', $post_data);

方法二:Socket版本

<?php /** * Socket版本 * 使用方法: * $post_string = "app=socket&version=beta"; * request_by_socket('chajia8.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; } ?>

方法三:Curl版本

<?php /** * Curl版本 * 使用方法: * $post_string = "app=request&version=beta"; * request_by_curl('https://www.jb51.net/restServer.php', $post_string); */ function request_by_curl($remote_server, $post_string) {   $ch = curl_init();   curl_setopt($ch, CURLOPT_URL, $remote_server);   curl_setopt($ch, CURLOPT_POSTFIELDS, 'mypost=' . $post_string);   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);   curl_setopt($ch, CURLOPT_USERAGENT, "jb51.net's CURL Example beta");   $data = curl_exec($ch);   curl_close($ch);   return $data; } ?>

下面是其他网友的方法:

class Request{ public static function post($url, $post_data = '', $timeout = 5){//curl $ch = curl_init(); curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_POST, 1); if($post_data != ''){ curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); } curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); curl_setopt($ch, CURLOPT_HEADER, false); $file_contents = curl_exec($ch); curl_close($ch); return $file_contents; } public static function post2($url, $data){//file_get_content $postdata = http_build_query( $data ); $opts = array('http' => array( 'method' => 'POST', 'header' => 'Content-type: application/x-www-form-urlencoded', 'content' => $postdata ) ); $context = stream_context_create($opts); $result = file_get_contents($url, false, $context); return $result; } public static function post3($host,$path,$query,$others=''){//fsocket $post="POST $path HTTP/1.1\r\nHost: $host\r\n"; $post.="Content-type: application/x-www-form-"; $post.="urlencoded\r\n${others}"; $post.="User-Agent: Mozilla 4.0\r\nContent-length: "; $post.=strlen($query)."\r\nConnection: close\r\n\r\n$query"; $h=fsockopen($host,80); fwrite($h,$post); for($a=0,$r='';!$a;){ $b=fread($h,8192); $r.=$b; $a=(($b=='')?1:0); } fclose($h); return $r; } }

大家可以根据需要选择适合自己的即可。

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