Send server stored PDF file to another server via Curl PHP form data

Question

I'm trying to send a PHP file stored on my server to another server via Curl PHP Form Data method.

Normally this is done by submitting the form and uploading a file and sending the same file as form data to the Curl PHP endpoint, but in this case I already have the file on my server and I Stuck on the part of how to get the file and create its form data array and send the API Url as post method.

Below is some kind of program I'm trying. One of them is to create a tmp file and store data in it and send that data from tmp location to curl form data.

$source = file_get_contents("https://url/employee_manual3.pdf");

$tempFile = tempnam(sys_get_temp_dir(), 'File_');
    rename($tempFile, $tempFile .= '.pdf');

    file_put_contents($tempFile, $source);

    // var_dump($tempFile);
    //exit;
    
    // $post = array(
    // "uploadedFile" => "@" . $tempFile, //"@".$tempFile.";type=application/pdf",
    // );

    // var_dump(file_get_contents($tempFile));
    // var_dump(new CURLFILE($tempFile));
    //exit;

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => 'https://API_URL',
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => '',
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 0,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => 'POST',
        CURLOPT_POSTFIELDS => array('file' => new CURLFILE($tempFile)),
        CURLOPT_HTTPHEADER => array(
            'Authorization: Bearer API TOKEN HAI MERA',
            'Content-Type: multipart/form-data',
            'Cookie: MAIN NAHI BATAUNGA'
        ),
    ));

    $response = curl_exec($curl);

    curl_close($curl);
    echo $response;

Answer 1

Hi, you can check out the answer below to see how I managed to achieve this.

// $source = file_get_contents("https://URL/assets/email_images/employee_manual3.pdf");

    $file_path = __DIR__.'/../../../assets/email_images/employee_manual3.pdf';

    // var_dump(__DIR__.'/../../../assets/email_images/employee_manual3.pdf');
    // exit;

    // var_dump(new CURLFILE($file_path, 'application/pdf', 'file'));
    // exit;

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => 'API URL',
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => '',
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 0,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => 'POST',
        CURLOPT_POSTFIELDS => array('file' => new CURLFILE($file_path, 'application/pdf', 'file')),
    ));

    $response = curl_exec($curl);

    curl_close($curl);
    echo $response;