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(PHP ActiveX) Download Text File to a String Variable

This example demonstrates how to download the content of a text file from Google Drive into a string variable.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

$success = 1;

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

// This example uses a previously obtained access token having permission for the 
// Google Drive scope.

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.AuthGoogle')
$gAuth = new COM("Chilkat.AuthGoogle");
$gAuth->AccessToken = 'GOOGLE-DRIVE-ACCESS-TOKEN';

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Rest')
$rest = new COM("Chilkat.Rest");

// Connect using TLS.
// A single REST object, once connected, can be used for many Google Drive REST API calls.
// The auto-reconnect indicates that if the already-established HTTPS connection is closed,
// then it will be automatically re-established as needed.
$bAutoReconnect = 1;
$success = $rest->Connect('www.googleapis.com',443,1,$bAutoReconnect);

// Provide the authentication credentials (i.e. the access token)
$rest->SetAuthGoogle($gAuth);

// ------------------------------------------------------------------------------
// To download a file, we must know the file ID.
// In a previous example (see Build Local Metadata Cache
// we built a local cache to make it easy to lookup file IDs given a file path.
// Let's say we want to download "testFolder/abc/123/pigs.json".
// First we lookup the fileId in the cache.  With the fileId, we can download the file.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cache')
$gdCache = new COM("Chilkat.Cache");
$gdCache->Level = 0;
$gdCache->AddRoot('C:/ckCache/googleDrive');

$fileId = $gdCache->fetchText('testFolder/abc/123/pigs.json');
if ($gdCache->LastMethodSuccess != 1) {
    print 'Filepath not found in cache.' . "\n";
    exit;
}

// We need to send a GET request like this:
// GET https://www.googleapis.com/drive/v3/files/fileId?alt=media
// The fileId is part of the path.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder')
$sbPath = new COM("Chilkat.StringBuilder");
$sbPath->Append('/drive/v3/files/');
$sbPath->Append($fileId);
$rest->AddQueryParam('alt','media');

// The FullRequestNoBody returns the file content in the response body.
$fileContent = $rest->fullRequestNoBody('GET',$sbPath->getAsString());
if ($rest->LastMethodSuccess != 1) {
    print $rest->LastErrorText . "\n";
    exit;
}

// A successful response will have a status code equal to 200.
if ($rest->ResponseStatusCode != 200) {
    print 'response status code = ' . $rest->ResponseStatusCode . "\n";
    print 'response status text = ' . $rest->ResponseStatusText . "\n";
    print 'response header: ' . $rest->ResponseHeader . "\n";
    exit;
}

print $fileContent . "\n";

print 'File downloaded.' . "\n";

?>

 

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