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PHP + curl, HTTP POST sample code?

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北荒
北荒 2020-11-21 04:58

Can anyone show me how to do a php curl with an HTTP POST?

I want to send data like this:

username=user1, password=passuser1, gender=1
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11条回答
  • 情歌与酒
    2020-11-21 05:38

    A live example of using php curl_exec to do an HTTP post:

    Put this in a file called foobar.php:

    <?php
  $ch = curl_init();
  $skipper = "luxury assault recreational vehicle";
  $fields = array( 'penguins'=>$skipper, 'bestpony'=>'rainbowdash');
  $postvars = '';
  foreach($fields as $key=>$value) {
    $postvars .= $key . "=" . $value . "&";
  }
  $url = "http://www.google.com";
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_POST, 1);                //0 for a get request
  curl_setopt($ch,CURLOPT_POSTFIELDS,$postvars);
  curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch,CURLOPT_CONNECTTIMEOUT ,3);
  curl_setopt($ch,CURLOPT_TIMEOUT, 20);
  $response = curl_exec($ch);
  print "curl response is:" . $response;
  curl_close ($ch);
?>

    Then run it with the command php foobar.php, it dumps this kind of output to screen:

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Title</title>

<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">
<body>
  A mountain of content...
</body>
</html>

    So you did a PHP POST to www.google.com and sent it some data.

    Had the server been programmed to read in the post variables, it could decide to do something different based upon that.

    0 讨论(0)
  • 你的背包
    2020-11-21 05:38

    If the form is using redirects, authentication, cookies, SSL (https), or anything else other than a totally open script expecting POST variables, you are going to start gnashing your teeth really quick. Take a look at Snoopy, which does exactly what you have in mind while removing the need to set up a lot of the overhead.

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  • 被撕碎了的回忆
    2020-11-21 05:40

    It's can be easily reached with:

    <?php

$post = [
    'username' => 'user1',
    'password' => 'passuser1',
    'gender'   => 1,
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.domain.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post));
$response = curl_exec($ch);
var_export($response);
    0 讨论(0)
  • 渐次进展
    2020-11-21 05:42

    Here are some boilerplate code for PHP + curl http://www.webbotsspidersscreenscrapers.com/DSP_download.php

    include in these library will simplify development 

    <?php
# Initialization
include("LIB_http.php");
include("LIB_parse.php");
$product_array=array();
$product_count=0;

# Download the target (store) web page
$target = "http://www.tellmewhenitchanges.com/buyair";
$web_page = http_get($target, "");
    ...
?>
    0 讨论(0)
  • 小鲜肉
    2020-11-21 05:43

    A simpler answer IF you are passing information to your own website is to use a SESSION variable. Begin php page with:

    session_start();

    If at some point there is information you want to generate in PHP and pass to the next page in the session, instead of using a POST variable, assign it to a SESSION variable. Example:

    $_SESSION['message']='www.'.$_GET['school'].'.edu was not found.  Please try again.'

    Then on the next page you simply reference this SESSION variable. NOTE: after you use it, be sure you destroy it, so it doesn't persist after it is used:

    if (isset($_SESSION['message'])) {echo $_SESSION['message']; unset($_SESSION['message']);}
    0 讨论(0)
  • 逝去的感伤
    2020-11-21 05:43

    If you try to login on site with cookies.

    This code:

    if ($server_output == "OK") { ... } else { ... }

    May not works if you try to login, because many sites returns status 200, but the post is not successful.

    Easy way to check if the login post is successful is check if it setting cookies again. If in output have Set-Cookies string, this means the posts is not successful and it starts new session.

    Also the post can be successful, but the status can be redirect instead 200.

    To be sure the post is successful try this:

    Follow location after the post, so it will go to the page where the post do redirect to:

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

    And than check if new cookies existing in the request:

    if (!preg_match('/^Set-Cookie:\s*([^;]*)/mi', $server_output)) 

{echo 'post successful'; }

else { echo 'not successful'; }
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