有人能告诉我如何用HTTP POST做一个PHP cURL吗?

我想这样发送数据:

username=user1, password=passuser1, gender=1

到www.example.com

我希望cURL返回result=OK这样的响应。有什么例子吗?


当前回答

curlPost('google.com', [
    'username' => 'admin',
    'password' => '12345',
]);


function curlPost($url, $data) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    $response = curl_exec($ch);
    $error = curl_error($ch);
    curl_close($ch);
    if ($error !== '') {
        throw new \Exception($error);
    }

    return $response;
}

其他回答

如果表单使用重定向、身份验证、cookie、SSL (https)或其他任何东西,而不是期望POST变量的完全开放脚本,那么您将很快开始咬牙切齿。看看Snoopy,它完全按照您的想法来做,而且不需要设置大量的开销。

如果您要将信息传递到您自己的网站,一个更简单的答案是使用SESSION变量。开始php页面:

session_start();

如果在某些情况下,您希望在PHP中生成信息并将其传递到会话中的下一页,则不要使用POST变量,而是将其分配给session变量。例子:

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

然后在下一页中只需引用这个SESSION变量。注意:在你使用它之后,一定要销毁它,这样它就不会在使用后继续存在:

if (isset($_SESSION['message'])) {echo $_SESSION['message']; unset($_SESSION['message']);}

可以通过以下方式轻松到达:

<?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);
<?php
//
// A very simple PHP example that sends a HTTP POST to a remote site
//

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL,"http://www.example.com/tester.phtml");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
            "postvar1=value1&postvar2=value2&postvar3=value3");

// In real life you should use something like:
// curl_setopt($ch, CURLOPT_POSTFIELDS, 
//          http_build_query(array('postvar1' => 'value1')));

// Receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$server_output = curl_exec($ch);

curl_close($ch);

// Further processing ...
if ($server_output == "OK") { ... } else { ... }
?>

一个使用php curl_exec来做一个HTTP post的实例:

把它放在一个名为foobar.php的文件中:

<?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);
?>

然后用php foobar.php命令运行它,它会将这样的输出转储到屏幕上:

<!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>

因此,您执行了一个PHP POST到www.google.com,并向其发送了一些数据。

如果服务器被编程为读入post变量,它可以基于此决定做一些不同的事情。