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La clase CURLFile

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

Introducción

CURLFile debería emplearse para subir un fichero con CURLOPT_POSTFIELDS.

Sinopsis de la Clase

class CURLFile {

/* Propiedades */

public $name;

public $mime;

public $postname;

/* Métodos */

public __construct(string $filename, string $mimetype = ?, string $postname = ?)

public getFilename(): string

public getMimeType(): string

public getPostFilename(): string

public setMimeType(string $mime): void

public setPostFilename(string $postname): void

}

Propiedades

name: Nombrte del fichero a subir.
mime: Tipo MIME del fichero (el predeterminado es application/octet-stream).
postname: El nombre del fichero en los datos de subida (lo predeterminado es la propiedad name).

Ver también

curl_setopt()

Tabla de contenidos

CURLFile::__construct — Crear un objeto CURLFile
CURLFile::getFilename — Recupera el nombre de un fichero
CURLFile::getMimeType — Recupera el tipo MIME
CURLFile::getPostFilename — Recupera el nombre de fichero para POST
CURLFile::setMimeType — Configura el tipo MIME
CURLFile::setPostFilename — Establecer el nombre de fichero para POST

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User Contributed Notes 5 notes

down

CertaiN ¶

10 years ago


There are "@" issue on multipart POST requests.

Solution for PHP 5.5 or later:
- Enable CURLOPT_SAFE_UPLOAD.
- Use CURLFile instead of "@".

Solution for PHP 5.4 or earlier:
- Build up multipart content body by youself.
- Change "Content-Type" header by yourself.

The following snippet will help you :D

<?php

/**
 * For safe multipart POST request for PHP5.3 ~ PHP 5.4.
 * 
 * @param resource $ch cURL resource
 * @param array $assoc "name => value"
 * @param array $files "name => path"
 * @return bool
 */
function curl_custom_postfields($ch, array $assoc = array(), array $files = array()) {
    
    // invalid characters for "name" and "filename"
    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
    return @curl_setopt_array($ch, array(
        CURLOPT_POST       => true,
        CURLOPT_POSTFIELDS => implode("\r\n", $body),
        CURLOPT_HTTPHEADER => array(
            "Expect: 100-continue",
            "Content-Type: multipart/form-data; boundary={$boundary}", // change Content-Type
        ),
    ));
}

?>

down

alin dot rzv at gmail dot com ¶

10 years ago


i've seen some downvotes , here is a small example of using curl to upload image .

<?php
$target="http://youraddress.tld/example/upload.php";

# http://php.net/manual/en/curlfile.construct.php

// Create a CURLFile object / procedural method 
$cfile = curl_file_create('resource/test.png','image/png','testpic'); // try adding 

// Create a CURLFile object / oop method 
#$cfile = new CURLFile('resource/test.png','image/png','testpic'); // uncomment and use if the upper procedural method is not working.

// Assign POST data
$imgdata = array('myimage' => $cfile);

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $target);
curl_setopt($curl, CURLOPT_USERAGENT,'Opera/9.80 (Windows NT 6.2; Win64; x64) Presto/2.12.388 Version/12.15');
curl_setopt($curl, CURLOPT_HTTPHEADER,array('User-Agent: Opera/9.80 (Windows NT 6.2; Win64; x64) Presto/2.12.388 Version/12.15','Referer: http://someaddress.tld','Content-Type: multipart/form-data'));
curl_setopt($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, $imgdata); // post images 
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); // if any redirection after upload
$r = curl_exec($curl); 
curl_close($curl);

?>

down

php at miknik dot co dot uk ¶

6 years ago


Simple function to construct CURLFile from the file path:

function makeCurlFile($file){
$mime = mime_content_type($file);
$info = pathinfo($file);
$name = $info['basename'];
$output = new CURLFile($file, $mime, $name);
return $output;
}

Then construct an array of all the form fields you want to post. For each file upload just add the CURLFiles.

$ch = curl_init("https://api.example.com");
$mp3 =makeCurlFile($audio);
$photo = makeCurlFile($picture);
$data = array('mp3' => $mp3, 'picture' => $photo, 'name' => 'My latest single', 'description' => 'Check out my newest song');
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$result = curl_exec($ch);
if (curl_errno($ch)) {
   $result = curl_error($ch);
}
curl_close ($ch);

down

ohcc at 163 dot com ¶

6 years ago


This is how to upload two or more files at once with cURLFile.

With modern browser support, you can upload many files at one time if the multiple attribute is given.

<input type="file" name="file[]" muliple />

With outdated browser you can place many input elements to do that.

<input type="file" name="file[]" />
<input type="file" name="file[]" />
<input type="file" name="file[]" />

Here's the php code to handle multiple uploads.

<?php
    $cURLHandle = curl_init();
    // ... more code ...
    $postFields = array(
        'file[0]' => new cURLFile($file1, $mimetype1, $basename1),
        'file[1]' => new cURLFile($file2, $mimetype2, $basename2)
    )
    
    curl_setopt($cURLHandle, CURLOPT_POSTFIELDS, $fields);
    
    // ... more code ...
?>
Each file's mimetype can be determined by finfo, and its basename can be fetched from $_FILES if it is uploaded from the client-end or by pathinfo() if it is locally stored.

Don't leave the square brackets in ''file[0]'' empty like 'file[]', in that way only the last file will be received by the remote server.

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-12

humbads at gmail dot com ¶

9 years ago


// For backward compatibility, 
// convert @ prefixed file names to CurlFile class
// since @ prefix is deprecated as of PHP 5.6
if(is_array($postfields) == true)
{
    // Check each post field
    foreach($postfields as $key => $value)
    {
        // Convert values for keys starting with '@' prefix
        if(strpos($value, '@') === 0)
        {
            // Get the file name
            $filename = ltrim($value, '@');
            // Convert the value to the new class
            $postfields[$key] = new CURLFile($filename);
        }
    }
}
curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);

This code should be extended if support for the ';type=mimetype' suffix is needed.

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