Integration Google Drive in PHP

1	composer require google/apiclient:"^2.0"

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for laravel

$client = new \Google_Client();

$client->setClientId('client_id');

$client->setClientSecret('client_secret');

$client->addScope("https://www.googleapis.com/auth/drive.file");

$client->setRedirectUri('redirect_url');

// offline access will give you both an access and refresh token so that

// your app can refresh the access token without user interaction.

$client->setAccessType('offline');

// Using "consent" ensures that your application always receives a refresh token.

// If you are not using offline access, you can omit this.

// $client->setApprovalPrompt("consent");

//$client->setIncludeGrantedScopes(true); // incremental auth

$auth_url = $client->createAuthUrl(); // generating authentication url

1 2	$client->authenticate("code"); $access_token = $client->getAccessToken(); // generating access_token with refresh token

1	$new_access_token = $client->refreshToken($tokendata['refresh_token']); // generating new access_token

$service = new \Google_Service_Drive($client);
$foldername = "/main_folder/sub_folder/";
$folder_names = explode("/",$foldername);
		$i=0;
    $service = new \Google_Service_Drive($client);
		foreach($folder_names as $folder){
			if(!empty($folder)){
				if(isset($new_folder->id)){
					$parent = array($new_folder->id);
				$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false and parents='".$new_folder->id."'");
				}else{
					$parent = array();
				$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false");
				}
			
			$drive_folders = $service->files->listFiles($query);
			if(count($drive_folders)>0){
				foreach($drive_folders as $drive_folder){
					$new_folder = $drive_folder;
				}
			}else{
				$fileMetadata = new \Google_Service_Drive_DriveFile(array(
				'name' => $folder,
				'parents' => $parent,
				'mimeType' => 'application/vnd.google-apps.folder'));
			
				// Creating Folder with given Matadata and asking for ID field as result
				$new_folder = $service->files->create($fileMetadata, array('fields' => 'id'));
			}
			}
		$i++;
		}
		
		if(isset($new_folder->id)){
			$parent = array($new_folder->id);
		}else{
			$parent = array();
		}
		$fileMetadata = new \Google_Service_Drive_DriveFile(array('name' => $filename,'parents' => $parent));
		$file = $service->files->create($fileMetadata, array(
        'data' => $image_file_data, // this is file data
        'mimeType' => 'application/octet-stream',
        'uploadType' => 'multipart',
        'fields' => 'id'));

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$service = new \Google_Service_Drive($client);

$foldername = "/main_folder/sub_folder/";

$folder_names = explode("/",$foldername);

$i=0;

$service = new \Google_Service_Drive($client);

foreach($folder_names as $folder){

if(!empty($folder)){

if(isset($new_folder->id)){

$parent = array($new_folder->id);

$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false and parents='".$new_folder->id."'");

}else{

$parent = array();

$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false");

}

$drive_folders = $service->files->listFiles($query);

if(count($drive_folders)>0){

foreach($drive_folders as $drive_folder){

$new_folder = $drive_folder;

}

}else{

$fileMetadata = new \Google_Service_Drive_DriveFile(array(

'name' => $folder,

'parents' => $parent,

'mimeType' => 'application/vnd.google-apps.folder'));

// Creating Folder with given Matadata and asking for ID field as result

$new_folder = $service->files->create($fileMetadata, array('fields' => 'id'));

}

$i++;

}

if(isset($new_folder->id)){

$parent = array($new_folder->id);

}else{

$parent = array();

}

$fileMetadata = new \Google_Service_Drive_DriveFile(array('name' => $filename,'parents' => $parent));

$file = $service->files->create($fileMetadata, array(

'data' => $image_file_data, // this is file data

'mimeType' => 'application/octet-stream',

'uploadType' => 'multipart',

'fields' => 'id'));

// $filedata is file content data 
// $localfilepath is where your file store in localsystem
$GoogleDriveUploaded = Upload_File_Google_Drive($client,$foldername,$filename,$filedata,$localfilepath);

// upload file in google drive
function Upload_File_Google_Drive($client,$foldername,$filename,$image_data,$file_path){
	$mime_type = mime_content_type($file_path);
	$file = file_get_contents($file_path);
	$fileSize = strlen($file);
	$folder_names = explode("/",$foldername);
		$client->setDefer(false);
		$i=0;
		$service = new \Google_Service_Drive($client);
		foreach($folder_names as $folder){
			if(!empty($folder)){
				if(isset($new_folder->id)){
					$parent = array($new_folder->id);
				$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false and parents='".$new_folder->id."'");
				}else{
					$parent = array();
				$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false");
				}
			
			$drive_folders = $service->files->listFiles($query);
			if($drive_folders){
			if(count($drive_folders)>0){
				foreach($drive_folders as $drive_folder){
					$new_folder = $drive_folder;
				}
			}else{
				$fileMetadata = new \Google_Service_Drive_DriveFile(array(
				'name' => $folder,
				'parents' => $parent,
				'mimeType' => 'application/vnd.google-apps.folder'));
			
				// Creating Folder with given Matadata and asking for ID field as result
				$new_folder = $service->files->create($fileMetadata, array('fields' => 'id'));
			}
			}
			}
			$i++;
		}
		
		if(isset($new_folder->id)){
			$parent = array($new_folder->id);
		}else{
			$parent = array();
		}
		$fileMetadata = new \Google_Service_Drive_DriveFile(array('name' => $filename,'parents' => $parent));
		
	if($fileSize > 4194304){
		$chunkSizeBytes = 1 * 1024 * 1024;
		
		$client->setDefer(true);
		  $request = $service->files->create($fileMetadata);
		$media = new Google_Http_MediaFileUpload(
		  $client,
		  $request,
		  $mime_type,
		  null,
		  true,
		  $chunkSizeBytes
	  );
	  $media->setFileSize(filesize($file_path));
	  $status = false;
		  $handle = fopen($file_path, "rb");
		  while (!$status && !feof($handle)) {
			// read until you get $chunkSizeBytes from TESTFILE
			// fread will never return more than 8192 bytes if the stream is read buffered and it does not represent a plain file
			// An example of a read buffered file is when reading from a URL
			$chunk = readFileChunk($handle, $chunkSizeBytes);
			$status = $media->nextChunk($chunk);
		  }

// The final value of $status will be the data from the API for the object
		  // that has been uploaded.
		  $result = false;
		  if ($status != false) {
			$result = $status;
		  }
		  fclose($handle);
		return $result;
	}else{
		
		$file = $service->files->create($fileMetadata, array(
        'data' => $image_data,
        'mimeType' => 'application/octet-stream',
        'uploadType' => 'multipart',
        'fields' => 'id'));
		return $file;
	}
}

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// $filedata is file content data

// $localfilepath is where your file store in localsystem

$GoogleDriveUploaded = Upload_File_Google_Drive($client,$foldername,$filename,$filedata,$localfilepath);

function readFileChunk($handle, $chunkSize)

{

$byteCount = 0;

$giantChunk = "";

while (!feof($handle)) {

// fread will never return more than 8192 bytes if the stream is read buffered and it does not represent a plain file

$chunk = fread($handle, 8192);

$byteCount += strlen($chunk);

$giantChunk .= $chunk;

if ($byteCount >= $chunkSize)

{

return $giantChunk;

}

return $giantChunk;

}

// upload file in google drive

function Upload_File_Google_Drive($client,$foldername,$filename,$image_data,$file_path){

$mime_type = mime_content_type($file_path);

$file = file_get_contents($file_path);

$fileSize = strlen($file);

$folder_names = explode("/",$foldername);

$client->setDefer(false);

$i=0;

$service = new \Google_Service_Drive($client);

foreach($folder_names as $folder){

if(!empty($folder)){

if(isset($new_folder->id)){

$parent = array($new_folder->id);

$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false and parents='".$new_folder->id."'");

}else{

$parent = array();

$query = array('q'=>"name='".$folder."' and mimeType='application/vnd.google-apps.folder' and trashed=false");

}

$drive_folders = $service->files->listFiles($query);

if($drive_folders){

if(count($drive_folders)>0){

foreach($drive_folders as $drive_folder){

$new_folder = $drive_folder;

}

}else{

$fileMetadata = new \Google_Service_Drive_DriveFile(array(

'name' => $folder,

'parents' => $parent,

'mimeType' => 'application/vnd.google-apps.folder'));

// Creating Folder with given Matadata and asking for ID field as result

$new_folder = $service->files->create($fileMetadata, array('fields' => 'id'));

}

$i++;

}

if(isset($new_folder->id)){

$parent = array($new_folder->id);

}else{

$parent = array();

}

$fileMetadata = new \Google_Service_Drive_DriveFile(array('name' => $filename,'parents' => $parent));

if($fileSize > 4194304){

$chunkSizeBytes = 1 * 1024 * 1024;

$client->setDefer(true);

$request = $service->files->create($fileMetadata);

$media = new Google_Http_MediaFileUpload(

$client,

$request,

$mime_type,

null,

true,

$chunkSizeBytes

);

$media->setFileSize(filesize($file_path));

$status = false;

$handle = fopen($file_path, "rb");

while (!$status && !feof($handle)) {

// read until you get $chunkSizeBytes from TESTFILE

// fread will never return more than 8192 bytes if the stream is read buffered and it does not represent a plain file

// An example of a read buffered file is when reading from a URL

$chunk = readFileChunk($handle, $chunkSizeBytes);

$status = $media->nextChunk($chunk);

}

// The final value of $status will be the data from the API for the object

// that has been uploaded.

$result = false;

if ($status != false) {

$result = $status;

}

fclose($handle);

return $result;

}else{

$file = $service->files->create($fileMetadata, array(

'data' => $image_data,

'mimeType' => 'application/octet-stream',

'uploadType' => 'multipart',

'fields' => 'id'));

return $file;

}

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Integration Google Drive in PHP

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