PHP curl or file_get_contents to obtain the page authorization method, curlgetcontents

PHP curl or file_get_contents to obtain the page authorization method, curlgetcontents

Today, for work, you need to use curl/file_get_contents to obtain the page content for Authorization. After solving this problem, I wrote this article to share it with you.

PHP curl extension, which can initiate POST/GET requests on the server to access the page and obtain the returned data of the page.

For example, the page to be retrieved:Http: // localhost/server. php

<?php $content = isset($_POST['content'])? $_POST['content'] : ''; header('content-type:application/json'); echo json_encode(array('content'=>$content)); ?> 

Use curl to obtain the server. php page

<?php $url = 'http://localhost/server.php'; $param = array('content'=>'fdipzone blog'); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($param)); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $ret = curl_exec($ch); $retinfo = curl_getinfo($ch); curl_close($ch); if($retinfo['http_code']==200){  $data = json_decode($ret, true);  print_r($data); }else{  echo 'POST Fail'; } ?> 

If the service does not install the php curl extension, useFile_get_contentsYou can also initiate a request to obtain the data returned from the page.

<?php $url = 'http://localhost/server.php'; $param = array('content'=>'fdipzone blog'); $opt = array(  'http' => array(   'method' => 'POST',   'header' => 'content-type:application/x-www-form-urlencoded',   'content' => http_build_query($param)  ) ); $context = stream_context_create($opt); $ret = file_get_contents($url, false, $context); if($ret){  $data = json_decode($ret, true);  print_r($data); }else{  echo 'POST Fail'; } ?> 

The results returned by using curl and file_get_contents are the same.

Array (  [content] => fdipzone blog ) 

For pages to be authorized, for exampleHtpasswd +. htaccessThe page that sets the directory access permission.401 UnauthorizedError.

In this example, do not use htpasswd +. htaccess to control the access permission.$ _ SERVER ['php _ AUTH_USER ']And$ _ SERVER ['php _ AUTH_PW ']These two server parameters.

Http: // localhost/server. phpTo:

<?php if(!isset($_SERVER['PHP_AUTH_USER'])) {  header('WWW-Authenticate: Basic realm="localhost"');  header("HTTP/1.0 401 Unauthorized");  exit; }else{  if (($_SERVER['PHP_AUTH_USER']!= "fdipzone" || $_SERVER['PHP_AUTH_PW']!="654321")) {   header('WWW-Authenticate: Basic realm="localhost"');   header("HTTP/1.0 401 Unauthorized");   exit;  } } $content = isset($_POST['content'])? $_POST['content'] : ''; header('content-type:application/json'); echo json_encode(array('content'=>$content)); ?> 

Set Account: fdipzone password: 654321

In curl, there is a parameter:CURLOPT_USERPWDYou can use this parameter to send the account and password at the time of the request.

Curl_setopt ($ ch, CURLOPT_USERPWD, 'account: password ');

Modify the curl request program:

<? Php $ url = 'HTTP: // localhost/server. php '; $ param = array ('content' => 'fdipzone blog'); $ ch = curl_init (); curl_setopt ($ ch, CURLOPT_URL, $ url ); curl_setopt ($ ch, CURLOPT_POST, true); curl_setopt ($ ch, CURLOPT_POSTFIELDS, http_build_query ($ param); curl_setopt ($ ch, success, true); curl_setopt ($ ch, CURLOPT_USERPWD, 'fdipzone: 100'); // Add this sentence $ ret = curl_exec ($ ch); $ retinfo = curl_getinfo ( $ Ch); curl_close ($ ch); if ($ retinfo ['HTTP _ Code'] = 200) {$ data = json_decode ($ ret, true ); print_r ($ data);} else {echo 'Post Fail ';}?>

For file_get_contents, if you want to send the account and password, you need to manually splice the header

The file_get_contents request program is modified:

<? Php $ url = 'HTTP: // localhost/server. php '; $ param = array ('content' => 'fdipzone blog'); $ auth = sprintf ('authorization: Basic % s', base64_encode ('fdipzone: 654321 '); // Add this sentence $ opt = array ('http' => array ('method' => 'post ', 'header' => "content-type: application/x-www-form-urlencoded \ r \ n ". $ auth. "\ r \ n", // Add $ auth to header 'content' => http_build_query ($ param); $ context = stream_context_create ($ opt ); $ Ret = file_get_contents ($ url, false, $ context); if ($ ret) {$ data = json_decode ($ ret, true); print_r ($ data );} else {echo 'Post Fail ';}?>

Source code: Click to view

The above is all the content of this article. I hope this article will help you in your study or work. I also hope to provide more support to the customer's home!