PHP

Download File from Dropbox into a String Variable

See more Dropbox Examples

Demonstrates how to download a file from Dropbox directly into a string variable. Chilkat2 PHP

<?php

use Chilkat2\DateTime;
use Chilkat2\DtObj;
use Chilkat2\JsonObject;
use Chilkat2\Rest;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// A Dropbox access token should have been previously obtained.
// Dropbox access tokens do not expire.
// See Dropbox Access Token.

$rest = new Rest();

// Connect to Dropbox
try {
    $rest->Connect('content.dropboxapi.com', 443, true, true);

    // Add request headers.
    $rest->AddHeader('Authorization', 'Bearer DROPBOX_ACCESS_TOKEN');

    // The download "parameters" are contained in JSON passed in an HTTP request header.
    // This is the JSON indicating the file to be downloaded:
    // {
    //    "path": "/jack.txt",
    // }

    $json = new JsonObject();
    $json->AppendString('path', '/jack.txt');
    $rest->AddHeader('Dropbox-API-Arg', $json->Emit());

    // The content of the file on Dropbox is returned.
    $fileContent = $rest->FullRequestNoBody('POST', '/2/files/download');
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// When successful, Dropbox responds with a 200 response code.
if ($rest->ResponseStatusCode != 200) {
    // Examine the request/response to see what happened.
    echo 'response status code = ', $rest->ResponseStatusCode, "\n";
    echo 'response status text = ', $rest->ResponseStatusText, "\n";
    echo 'response header: ', $rest->ResponseHeader, "\n";
    echo 'response body (if any): ', $fileContent, "\n";
    echo "---\n";
    echo 'LastRequestStartLine: ', $rest->LastRequestStartLine, "\n";
    echo 'LastRequestHeader: ', $rest->LastRequestHeader, "\n";
    exit;
}

// Show the file content that was downloaded:
echo $fileContent, "\n";
echo "----\n";

// Information about the downloaded file is also available as JSON in a response header.
// The "dropbox-api-result" response header contains the information.  For example:
$apiResult = $rest->ResponseHdrByName('dropbox-api-result');
echo $apiResult, "\n";

// In this case, the pretty-formatted dropbox-api-result JSON looks like this:
// {
//   "name": "jack.txt",
//   "path_lower": "/jack.txt",
//   "path_display": "/jack.txt",
//   "id": "id:yqx4-tE_NKAAAAAAAAAAAQ",
//   "client_modified": "2016-06-02T20:42:11Z",
//   "server_modified": "2016-06-02T20:42:11Z",
//   "rev": "8482db15f",
//   "size": 42
// }

// Load the JSON, pretty-print it, and demonstrate how to get some values...
$jsonResult = new JsonObject();
$jsonResult->EmitCompact = false;
$jsonResult->Load($apiResult);
// Show the JSON pretty-printed...
echo $jsonResult->Emit(), "\n";

// Sample code to get data from the JSON response:
$size = $jsonResult->IntOf('size');
echo 'size = ', $size, "\n";

$rev = $jsonResult->StringOf('rev');
echo 'rev = ', $rev, "\n";

$clientModified = $jsonResult->StringOf('client_modified');
$ckdt = new DateTime();
$ckdt->SetFromTimestamp($clientModified);
$bLocalTime = true;
$dt = new DtObj();
$ckdt->ToDtObj($bLocalTime, $dt);

echo $dt->Day, '/', $dt->Month, '/', $dt->Year, ' ', $dt->Hour, ':', $dt->Minute, "\n";