For the introduction to php://input, the official PHP manual document has a paragraph that clearly outlines it.
“php://input allows you to read raw POST data. It is a less memory intensive alternative to$HTTP_RAW_POST_DATA and does not need any special php.ini directives. php://input is not available with enctype=”multipart/ form-data".
Translated, it is like this:
"php://input can read unprocessed POST data. Compared with $HTTP_RAW_POST_DATA, it puts less pressure on memory and does not require special php.ini settings. php://input cannot be used for enctype=multipart/form-data"
The summary is as follows:
1), Coentent-Type only applies when the value is application/x-www-data-urlencoded and multipart/form-data In this case, PHP will fill in the corresponding data in the http request packet into the global variable $_POST
2). When the Content-Type type is not recognized by PHP, it will fill in the corresponding data in the http request packet into the variable. $HTTP_RAW_POST_DATA
3), only when the Coentent-Type is multipart/form-data, PHP will not fill in the corresponding data in the http request packet into php://input, otherwise the length will be filled in in other cases. Specified by Coentent-Length.
4), php://input data is consistent with $_POST data only when Content-Type is application/x-www-data-urlencoded.
5), php://. The input data is always the same as $HTTP_RAW_POST_DATA, but php://input is more efficient than $HTTP_RAW_POST_DATA and does not require special settings for php.ini
6). PHP will fill the query_path part of the PATH field into the global variable $_GET . Normally, the body of the http request submitted by the GET method is empty. To sum up, when you cannot get the callback data from the APP or some interfaces using $_POST, try using php://input. Try
1. Accept xml data
//发送xml数据 $xml = '<xml>xmldata</xml>';//要发送的xml $url = 'http://localhost/test/getXML.php';//接收XML地址 $header = 'Content-type: text/xml';//定义content-type为xml $ch = curl_init(); //初始化curl curl_setopt($ch, CURLOPT_URL, $url);//设置链接 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//设置是否返回信息 curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//设置HTTP头 curl_setopt($ch, CURLOPT_POST, 1);//设置为POST方式 curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);//POST数据 $response = curl_exec($ch);//接收返回信息 if(curl_errno($ch)){//出错则显示错误信息 print curl_error($ch); } curl_close($ch); //关闭curl链接 echo $response;//显示返回信息 // php用file_get_contents("php://input")或者$HTTP_RAW_POST_DATA可以接收xml数据 $xmldata = file_get_contents("php://input"); $data = (array)simplexml_load_string($xmldata);2. Mini program for uploading pictures to the server via mobile phone
Send
//@file phpinput_post.php $data=file_get_contents('btn.png'); $http_entity_body = $data; $http_entity_type = 'application/x-www-form-urlencoded'; $http_entity_length = strlen($http_entity_body); $host = '127.0.0.1'; $port = 80; $path = '/image.php'; $fp = fsockopen($host, $port, $error_no, $error_desc, 30); if ($fp){ fputs($fp, "POST {$path} HTTP/1.1\r\n"); fputs($fp, "Host: {$host}\r\n"); fputs($fp, "Content-Type: {$http_entity_type}\r\n"); fputs($fp, "Content-Length: {$http_entity_length}\r\n"); fputs($fp, "Connection: close\r\n\r\n"); fputs($fp, $http_entity_body . "\r\n\r\n"); while (!feof($fp)) { $d .= fgets($fp, 4096); } fclose($fp); echo $d; }
Receive
/** *Recieve image data **/ error_reporting(E_ALL); function get_contents() { $xmlstr= file_get_contents("php://input"); $filename=file_put_contentsxmltime().'.png'; if(($filename,$str)){ echo 'success'; }else{ echo 'failed'; } } get_contents();
3: Get the original text of the HTTP request
/** * 获取HTTP请求原文 * @return string */ function get_http_raw(){ $raw = ''; // (1) 请求行 $raw .= $_SERVER['REQUEST_METHOD'] . ' ' . $_SERVER['REQUEST_URI'] . ' ' . $_SERVER['SERVER_PROTOCOL'] . "\r\n"; // (2) 请求Headers foreach ($_SERVER as $key => $value) { if (substr($key , 0 , 5) === 'HTTP_') { $key = substr($key , 5); $key = str_replace('_' , '-' , $key); $raw .= $key . ': ' . $value . "\r\n"; } } // (3) 空行 $raw .= "\r\n"; // (4) 请求Body $raw .= file_get_contents('php://input'); return $raw; }The above are three small programs for PHP input flow Chestnut, the purpose is to help everyone understand the PHP input stream more accurately. I hope you will gain something. For more relevant articles on the PHP input stream php://input, please pay attention to the PHP Chinese website!

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