卷曲或 file_get_contents 不工作

Question

我在发送帖子请求时遇到了一些问题。我使用此脚本执行页面 http://localname.local/test，页面 http://localname.local/directory/page.php 获得 json 数据。

$url = "http://localname.local/directory/page.php";

$post = [
    "key1" => "hello",
    "key2" => 885,
];

$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($post),
        'timeout' => 10
    )
);
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);


if ( $result === false ) {
    // Handle error
    return null;
}
else
    return $result;

但 10 秒后，脚本收到消息：

Warning: file_get_contents(http://localname.local/directory/page.php): failed to open stream: HTTP request failed! in D:\ ... \html\test.php on line X

page.php 有效，我可以用我的浏览器作为客户端发送帖子请求，但 php（或 wamp）无法访问或向其自己的页面发送请求。

我在 wamp 3.0.9 上安装了 PHP 7.1.7、Apache 2.4.23 并且选项 allow_url_fopen 已启用。

编辑：对于 CURL

public static function get_content($post)
{
    $url = "http://localname.local/directory/page.php";
    
    $query = http_build_query($post);
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10); // Tell cURL that it should only spend X seconds trying to connect to the URL in question.
    curl_setopt($curl, CURLOPT_TIMEOUT, 10); // A given cURL operation should only take X seconds max.
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // returns data to function
    curl_setopt($curl, CURLOPT_POSTFIELDS, $query);
    $data = curl_exec($curl);
    
    if ( curl_errno($curl) )
        throw new Exception(curl_error($curl));

    curl_close($curl);
    
    return $data;
}

得到

Fatal error: Uncaught Exception: Operation timed out after 10000 milliseconds with 0 bytes received in D:\ ... \html\test.php on line X

Exception: Operation timed out after 10000 milliseconds with 0 bytes received

Answer 1

为了 file_get_contents() 打开 URL，您必须在 php.ini 文件中启用设置 allow_url_fopen。

出于安全考虑，我建议您使用 cURL:

来实现您正在做的事情

function get_content($url,$post){
    $query = http_build_query($post);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $URL);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // returns data to function
    curl_setopt($ch, CURLOPT_POSTFIELDS,$query);
    $data = curl_exec($ch);
    // if you want to display error messages, do it before curl_close()
    //echo curl_errno($ch); // if you want to display error number
    //echo curl_error($ch); // if you want to display error message
    curl_close($ch);
    return $data;
}

echo get_content('http://localname.local/directory/page.php');

Answer 2

我认为你需要增加CURLOPT_TIMEOUT时间

Answer 3

真正的问题

test.php 使用 session_start()
test.php 在 page.php

POST request

page.php 使用 session_start() <<< 冻结

我们不能同时使用 2 个会话 PHP。会话正在锁定并创建无限循环。

谢谢大家帮我找到解决办法。

卷曲或 file_get_contents 不工作

curl or file_get_contents not working

php

curl

wamp

wampserver

file-get-contents