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This article mainly explains "how to use php://input in PHP". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use php://input in PHP.

Php://input can read unprocessed POST data, using methods such as "$xmldata = file_get_contents (" php://input ");" to receive xml data.

This article operating environment: Windows7 system, PHP7.1 version, Dell G3 computer.

How to use php://input in PHP?

As for the introduction to php://input, there is a paragraph in the official PHP manual document 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 ".

The translation goes like this:

"php://input can read unprocessed POST data. Compared to $HTTP_RAW_POST_DATA, it puts less pressure on memory and does not require special php.ini settings. Php://input cannot be used with enctype=multipart/form-data"

The summary is as follows:

1), Coentent-Type only if the values are application/x-www-data-urlencoded and multipart/form-data, PHP will fill the corresponding data in the http request packet into the global variable $_ POST

2) when the Content-Type type is not recognized by PHP, the corresponding data in the http request package will be filled with the variable $HTTP_RAW_POST_DATA

3) when only Coentent-Type is multipart/form-data, PHP will not enter the corresponding data in the http request packet into php://input, otherwise it will. The length to be filled, as specified by Coentent-Length.

4) only when Content-Type is application/x-www-data-urlencoded, php://input data is consistent with $_ POST data.

5), php://input data is always the same as $HTTP_RAW_POST_DATA, but php://input is more efficient than $HTTP_RAW_POST_DATA, and no special setting of php.ini is required

6) PHP will fill the query_path part of the PATH field with the global variable $_ GET. Typically, the http request submitted by the GET method has an empty body.

To sum up, when you can't get callback data from APP or some interfaces with $_ POST, try using php://input.

1. Accept xml data

/ / send xml data $xml = 'xmldata';// to send xml $url =' http://localhost/test/getXML.php';// receive XML address $header = 'Content-type: text/xml';// defines content-type as xml $ch = curl_init (); / / initialize curl curl_setopt ($ch, CURLOPT_URL, $url); / / set link curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1) / / set whether to return message curl_setopt ($ch, CURLOPT_HTTPHEADER, $header); / / set HTTP header curl_setopt ($ch, CURLOPT_POST, 1); / / set to POST mode curl_setopt ($ch, CURLOPT_POSTFIELDS, $xml); / / POST data $response = curl_exec ($ch); / / receive return message if (curl_errno ($ch)) {/ / error will display error message print curl_error ($ch);} curl_close ($ch) / / close the curl link echo $response;// to display the returned information / / php can receive xml data with file_get_contents ("php://input") or $HTTP_RAW_POST_DATA $xmldata = file_get_contents ("php://input"); $data = (array) simplexml_load_string ($xmldata)

2. Mini Program where the phone uploads pictures to the server.

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 ($fp, "Connection: close\ r\ n"); fputs ($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 HTTP request text

/ * get the original HTTP request text * @ return string * / function get_http_raw () {$raw =''; / / (1) request line $raw. = $_ SERVER ['REQUEST_METHOD']. ''. $_ SERVER ['REQUEST_URI']. ''. $_ SERVER ['SERVER_PROTOCOL']. "\ r\ n"; / / (2) request Headers foreach ($_ SERVER as $key = > $value) {if (substr ($key, 0,5) = = 'HTTP_') {$key = substr ($key, 5); $key = str_replace (' _','-', $key); $raw. = $key. ':. $value. "\ r\ n";}} / / (3) blank line $raw. = "\ r\ n"; / / (4) request Body $raw. = file_get_contents ('php://input'); return $raw Thank you for your reading. The above is the content of "how to use php://input in PHP". After the study of this article, I believe you have a deeper understanding of how to use php://input in PHP, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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