CURL調用未將文件從本地上傳到遠程服務器PHP

Question

嗨，我有以下CURL調用，它將把本地文本文件上傳到另一個位置，到目前為止，僅在localhost中（即，出於測試目的，一旦成功運行，我將推送服務器位置）。 但是問題是本地文本文件沒有發布。 有什么方法可以發布文件。

注意 -我不想通過file_get_contents或FTP上傳來執行此操作。 甚至我引用了其他問題，但沒有解決我的問題。

<?php
/* CURL Initilization */
$curl = curl_init();
/* Setting the remove URL */
curl_setopt($curl, CURLOPT_URL, 'http://127.0.0.1/php_training/get_curl_call.php');
/* I want to return the transfer and store in data instead of outputing on screen */
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
/* To upload safely */
curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
/* Enable sending the data as POST data */
curl_setopt($curl, CURLOPT_POST, true);
/* Sending the data using @ is before 5.5, now I am using curl_file_create */
/* realpath - will get the absolute path of the .txt file */
curl_setopt($curl, CURLOPT_POSTFIELDS, array(
      'log_file' => curl_file_create(realpath('websites.txt'))
    )
);
/* Store the response of curl execution */
$response = curl_exec($curl);
print_r($response, curl_error($curl));
curl_close($curl);

以下是get_curl_call.php

<?php
// $filename = $_POST['log_file'];
print_r($_POST);exit;

以下是website.txt文件的內容

Sat Sep 9 07:31:18 2017 notifications.google.com 192.168.150.201
Sat Sep 9 07:31:18 2017 notifications.google.com 192.168.150.201
Sat Sep 9 07:31:19 2017 plus.l.google.com 192.168.150.201
Sat Sep 9 07:31:19 2017 plus.l.google.com 192.168.150.201

get_curl_call.php的輸出

Array ( ) 

我無法糾正文件未上傳的原因。 任何幫助真的很感激。

Answer 1

嘗試以下代碼，我已根據您的需要對其進行了更新。 同樣，當我們發布文件時，它不會像您一樣使用$_POST顯示，而是要查看文件，您需要打印$_FILES

我尚未測試您的代碼，但對我來說似乎還不錯。 您的主要錯誤是您正在使用$_POST打印上傳文件。 文件上傳位於$_FILES數組中。 嘗試打印出來。

上傳文件：（即使與舊版本的PHP兼容），請注意，出於兼容性目的，當CURLFile不可用（對於PHP小於5.5）時，我使用了file_get_contents。

<?php

$file = "websites.txt";
upload_with_compatibility($file);

function upload_with_compatibility($file){
    if (version_compare(phpversion(), '5.5', '>=')) {
        echo "Upload will be done using CURLFile\n";
        upload($file); //CURL file upload using CURLFile for PHP v5.5 or greater
    }else{
        echo "Upload will be done without CURLFile\n";
        compatibleUpload($file); //CURL file upload without CURLFile for PHP less than v5.5
    }
}

//Upload file using CURLFile
function upload($file){
    $target = "http://localhost:8888/upload_file.php";
    $host = parse_url($target);

    $cFile = new CURLFile($file,'text/plain', $file);
    $data = array(
        'log_file' => $cFile,
    );

    //you can play around with headers, and adjust as per your need
    $agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36';
    $curlHeaders = array(
        'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
        'Accept-Encoding: gzip, deflate',
        'Accept-Language: en-US,en;q=0.8',
        'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36', //change user agent if you want
        'Connection: Keep-Alive',
        'Pragma: no-cache',
        'Referer: http://localhost:8888/upload.php', //you can change referer, if you want or remove it
        'Host: ' . $host['host'] . (isset($host['port']) ? ':' . $host['port'] : null), // building host header
        'Cache-Control: max-age=0',
        'Cookie: __utma=61117235.2020578233.1500534080.1500894744.1502696111.4; __utmz=61117235.1500534080.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)', //adjust your cookie if you want
        'Expect:  '
    );

    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $target);
    curl_setopt($curl, CURLOPT_HEADER  , true); //we need header
    curl_setopt($curl, CURLOPT_USERAGENT,$agent);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $curlHeaders);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // stop verifying certificate
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); 
    curl_setopt($curl, CURLOPT_POST, true); // enable posting
    curl_setopt($curl, CURLOPT_POSTFIELDS, $data); // post images 
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); // if any redirection after upload
    curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
    $r = curl_exec($curl);
    if (curl_errno($curl)) {
        $error = curl_error($curl);
        print_r($error);
    } else {
        // check the HTTP status code of the request
        $resultStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        if ($resultStatus != 200) {
            print_r($resultStatus);
        }else{
            //successfull
            print_r($r);
        }
    }
    curl_close($curl);
}

//Upload file without using CURLFile, because we are upload a file, so we need to generate form boundry
function compatibleUpload($file){
    $target = "http://localhost:8888/upload_file.php";
    //use this to send any post parameters expect file types
    //if you are not sending any other post params expect file, just assign an empty array
    // $assoc = array(
    //     'name' => 'demo',
    //     'status' => '1'
    // );
    $assoc = array(); //like this

    //this array is used to send files
    $files = array('log_file' => $file);

    static $disallow = array("\0", "\"", "\r", "\n");

    // build normal parameters
    foreach ($assoc as $k => $v) {
        $k = str_replace($disallow, "_", $k);
        $body[] = implode("\r\n", array(
            "Content-Disposition: form-data; name=\"{$k}\"",
            "",
            filter_var($v), 
        ));
    }

    // build file parameters
    foreach ($files as $k => $v) {
        switch (true) {
            case false === $v = realpath(filter_var($v)):
            case !is_file($v):
            case !is_readable($v):
                continue; // or return false, throw new InvalidArgumentException
        }
        $data = file_get_contents($v);
        $v = call_user_func("end", explode(DIRECTORY_SEPARATOR, $v));
        $k = str_replace($disallow, "_", $k);
        $v = str_replace($disallow, "_", $v);
        $body[] = implode("\r\n", array(
            "Content-Disposition: form-data; name=\"{$k}\"; filename=\"{$v}\"",
            "Content-Type: application/octet-stream",
            "",
            $data, 
        ));
    }

    // generate safe boundary 
    do {
        $boundary = "---------------------" . md5(mt_rand() . microtime());
    } while (preg_grep("/{$boundary}/", $body));

    // add boundary for each parameters
    array_walk($body, function (&$part) use ($boundary) {
        $part = "--{$boundary}\r\n{$part}";
    });

    // add final boundary
    $body[] = "--{$boundary}--";
    $body[] = "";

    // set options
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $target);
    curl_setopt($ch, CURLOPT_HEADER  , true); //we need header
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // stop verifying certificate
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt_array($ch, array(
        CURLOPT_POST       => true,
        CURLOPT_POSTFIELDS => implode("\r\n", $body),
        CURLOPT_HTTPHEADER => array(
            "Expect: ",
            "Content-Type: multipart/form-data; boundary={$boundary}", // change Content-Type
        ),
    ));
    $r = curl_exec($ch);
    if (curl_errno($ch)) {
        $error = curl_error($ch);
        print_r($error);
    } else {
        // check the HTTP status code of the request
        $resultStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        if ($resultStatus != 200) {
            print_r($resultStatus);
        }else{
            //successfully uploaded
            print_r($r);
        }
    }
    curl_close($ch);
}
?>

上傳處理：

<?php
    print_r($_POST); //this will print post varibales expect file types
    print_r($_FILES); // this will print files that are posted
?>

我嘗試上傳的示例：（websites.txt）

Sat Sep 9 07:31:18 2017 notifications.google.com 192.168.150.201
Sat Sep 9 07:31:18 2017 notifications.google.com 192.168.150.201
Sat Sep 9 07:31:19 2017 plus.l.google.com 192.168.150.201
Sat Sep 9 07:31:19 2017 plus.l.google.com 192.168.150.201

輸出CURL結果（PHP版本5.5及更高版本）

Upload will be done using CURLFile
HTTP/1.1 200 OK
Date: Wed, 13 Sep 2017 07:11:07 GMT
Server: Apache
X-Powered-By: PHP/5.5.38
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html

Array
(
)
Array
(
    [log_file] => Array
        (
            [name] => websites.txt
            [type] => text/plain
            [tmp_name] => /Applications/MAMP/tmp/php/phpRp8S4T
            [error] => 0
            [size] => 245
        )

)

CURL結果的輸出（PHP版本低於5.5，我在5.4.45上進行了測試）

Upload will be done without CURLFile
HTTP/1.1 200 OK
Date: Wed, 13 Sep 2017 07:17:43 GMT
Server: Apache
X-Powered-By: PHP/5.4.45
Transfer-Encoding: chunked
Content-Type: text/html

Array
(
)
Array
(
    [log_file] => Array
        (
            [name] => websites.txt
            [type] => application/octet-stream
            [tmp_name] => /Applications/MAMP/tmp/php/phpQWGlEG
            [error] => 0
            [size] => 245
        )

)