Cloud Storage Client - Class Bucket (1.33.4)

Reference documentation and code samples for the Cloud Storage Client class Bucket.

Buckets are the basic containers that hold your data. Everything that you store in Google Cloud Storage must be contained in a bucket.

Example:

 use Google\Cloud\Storage\StorageClient;

$storage = new StorageClient();

$bucket = $storage->bucket('my-bucket'); 

Namespace

Google \ Cloud \ Storage

Methods

__construct

Parameters
Name
Description
connection
Google\Cloud\Storage\Connection\ConnectionInterface

Represents a connection to Cloud Storage. This object is created by StorageClient, and should not be instantiated outside of this client.

name
string

The bucket's name.

info
array

[optional] The bucket's metadata.

acl

Returns
Type
Description
An ACL instance configured to handle the bucket's access control policies.

defaultAcl

Returns
Type
Description
An ACL instance configured to handle the bucket's default object access control policies.

exists

Check whether or not the bucket exists.

Example:

 if ($bucket->exists()) {
    echo 'Bucket exists!';
} 
Parameter
Name
Description
options
array

Configuration options.

Returns
Type
Description
bool

upload

Parameters
Name
Description
data
string|resource| Psr\Http\Message\StreamInterface |null

The data to be uploaded.

options
array

Configuration options.

↳ name
string

The name of the destination. Required when data is of type string or null.

↳ resumable
bool

Indicates whether or not the upload will be performed in a resumable fashion.

↳ validate
bool|string

Indicates whether or not validation will be applied using md5 or crc32c hashing functionality. If enabled, and the calculated hash does not match that of the upstream server, the upload will be rejected. Available options are true , false , md5 and crc32 . If true, either md5 or crc32c will be chosen based on your platform. If false, no validation hash will be sent. Choose either md5 or crc32 to force a hash method regardless of performance implications. In PHP versions earlier than 7.4, performance will be very adversely impacted by using crc32c unless you install the crc32c PHP extension. Defaults to true .

↳ chunkSize
int

If provided the upload will be done in chunks. The size must be in multiples of 262144 bytes. With chunking you have increased reliability at the risk of higher overhead. It is recommended to not use chunking.

↳ uploadProgressCallback
callable

If provided together with $resumable == true the given callable function/method will be called after each successfully uploaded chunk. The callable function/method will receive the number of uploaded bytes after each uploaded chunk as a parameter to this callable. It's useful if you want to create a progress bar when using resumable upload type together with $chunkSize parameter. If $chunkSize is not set the callable function/method will be called only once after the successful file upload.

↳ predefinedAcl
string

Predefined ACL to apply to the object. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ metadata
array

The full list of available options are outlined at the JSON API docs .

↳ metadata
array

.metadata User-provided metadata, in key/value pairs.

↳ encryptionKey
string

A base64 encoded AES-256 customer-supplied encryption key. If you would prefer to manage encryption utilizing the Cloud Key Management Service (KMS) please use the $metadata.kmsKeyName setting. Please note if using KMS the key ring must use the same location as the bucket.

↳ encryptionKeySHA256
string

Base64 encoded SHA256 hash of the customer-supplied encryption key. This value will be calculated from the encryptionKey on your behalf if not provided, but for best performance it is recommended to pass in a cached version of the already calculated SHA.

Returns
Type
Description

uploadAsync

Parameters
Name
Description
data
string|resource| Psr\Http\Message\StreamInterface |null

The data to be uploaded.

options
array

Configuration options.

↳ name
string

The name of the destination. Required when data is of type string or null.

↳ validate
bool|string

Indicates whether or not validation will be applied using md5 or crc32c hashing functionality. If enabled, and the calculated hash does not match that of the upstream server, the upload will be rejected. Available options are true , false , md5 and crc32 . If true, either md5 or crc32c will be chosen based on your platform. If false, no validation hash will be sent. Choose either md5 or crc32 to force a hash method regardless of performance implications. In PHP versions earlier than 7.4, performance will be very adversely impacted by using crc32c unless you install the crc32c PHP extension. Defaults to true

↳ predefinedAcl
string

Predefined ACL to apply to the object. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ metadata
array

The full list of available options are outlined at the JSON API docs .

↳ metadata
array

.metadata User-provided metadata, in key/value pairs.

↳ encryptionKey
string

A base64 encoded AES-256 customer-supplied encryption key. If you would prefer to manage encryption utilizing the Cloud Key Management Service (KMS) please use the $metadata.kmsKeyName setting. Please note if using KMS the key ring must use the same location as the bucket.

↳ encryptionKeySHA256
string

Base64 encoded SHA256 hash of the customer-supplied encryption key. This value will be calculated from the encryptionKey on your behalf if not provided, but for best performance it is recommended to pass in a cached version of the already calculated SHA.

Returns
Type
Description
GuzzleHttp\Promise\PromiseInterface<\google\cloud\storage\storageobject>

getResumableUploader

Parameters
Name
Description
data
string|resource| Psr\Http\Message\StreamInterface |null

The data to be uploaded.

options
array

Configuration options.

↳ name
string

The name of the destination. Required when data is of type string or null.

↳ validate
bool

Indicates whether or not validation will be applied using md5 hashing functionality. If true and the calculated hash does not match that of the upstream server the upload will be rejected.

↳ predefinedAcl
string

Predefined ACL to apply to the object. Acceptable values include "authenticatedRead ", "bucketOwnerFullControl ", "bucketOwnerRead ", "private ", "projectPrivate ", and "publicRead" .

↳ metadata
array

The available options for metadata are outlined at the JSON API docs .

↳ encryptionKey
string

A base64 encoded AES-256 customer-supplied encryption key. If you would prefer to manage encryption utilizing the Cloud Key Management Service (KMS) please use the $metadata['kmsKeyName'] setting. Please note if using KMS the key ring must use the same location as the bucket.

↳ encryptionKeySHA256
string

Base64 encoded SHA256 hash of the customer-supplied encryption key. This value will be calculated from the encryptionKey on your behalf if not provided, but for best performance it is recommended to pass in a cached version of the already calculated SHA.

↳ uploadProgressCallback
callable

The given callable function/method will be called after each successfully uploaded chunk. The callable function/method will receive the number of uploaded bytes after each uploaded chunk as a parameter to this callable. It's useful if you want to create a progress bar when using resumable upload type together with $chunkSize parameter. If $chunkSize is not set the callable function/method will be called only once after the successful file upload.

Returns
Type
Description
Google\Cloud\Core\Upload\ResumableUploader

getStreamableUploader

Parameters
Name
Description
data
string|resource| Psr\Http\Message\StreamInterface

The data to be uploaded.

options
array

Configuration options.

↳ name
string

The name of the destination. Required when data is of type string or null.

↳ validate
bool

Indicates whether or not validation will be applied using md5 hashing functionality. If true and the calculated hash does not match that of the upstream server the upload will be rejected.

↳ chunkSize
int

If provided the upload will be done in chunks. The size must be in multiples of 262144 bytes. With chunking you have increased reliability at the risk of higher overhead. It is recommended to not use chunking.

↳ predefinedAcl
string

Predefined ACL to apply to the object. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ metadata
array

The available options for metadata are outlined at the JSON API docs .

↳ encryptionKey
string

A base64 encoded AES-256 customer-supplied encryption key. If you would prefer to manage encryption utilizing the Cloud Key Management Service (KMS) please use the $metadata['kmsKeyName'] setting. Please note if using KMS the key ring must use the same location as the bucket.

↳ encryptionKeySHA256
string

Base64 encoded SHA256 hash of the customer-supplied encryption key. This value will be calculated from the encryptionKey on your behalf if not provided, but for best performance it is recommended to pass in a cached version of the already calculated SHA.

Returns
Type
Description
Google\Cloud\Core\Upload\StreamableUploader

object

Lazily instantiates an object. There are no network requests made at this point.

To see the operations that can be performed on an object please see Google\Cloud\Storage\StorageObject .

Example:

 $object = $bucket->object('file.txt'); 
Parameters
Name
Description
name
string

The name of the object to request.

options
array

Configuration options.

↳ generation
string

Request a specific revision of the object.

↳ encryptionKey
string

A base64 encoded AES-256 customer-supplied encryption key. It will be neccesary to provide this when a key was used during the object's creation.

↳ encryptionKeySHA256
string

Base64 encoded SHA256 hash of the customer-supplied encryption key. This value will be calculated from the encryptionKey on your behalf if not provided, but for best performance it is recommended to pass in a cached version of the already calculated SHA.

Returns
Type
Description

objects

Parameters
Name
Description
options
array

Configuration options.

↳ delimiter
string

Returns results in a directory-like mode. Results will contain only objects whose names, aside from the prefix, do not contain delimiter. Objects whose names, aside from the prefix, contain delimiter will have their name, truncated after the delimiter, returned in prefixes. Duplicate prefixes are omitted.

↳ maxResults
int

Maximum number of results to return per request. Defaults to 1000 .

↳ resultLimit
int

Limit the number of results returned in total. Defaults to 0 (return all results).

↳ pageToken
string

A previously-returned page token used to resume the loading of results from a specific point.

↳ prefix
string

Filter results with this prefix.

↳ projection
string

Determines which properties to return. May be either "full" or "noAcl" .

↳ versions
bool

If true, lists all versions of an object as distinct results. Defaults to false .

↳ fields
string

Selector which will cause the response to only return the specified fields.

↳ matchGlob
string

A glob pattern to filter results. The string value must be UTF-8 encoded. See: https://cloud.google.com/storage/docs/json_api/v1/objects/list#list-object-glob

Returns
Type
Description
Google\Cloud\Storage\ObjectIterator<\google\cloud\storage\storageobject>

createNotification

Parameters
Name
Description
topic
string| Google\Cloud\PubSub\Topic

The topic used to publish notifications.

options
array

Configuration options.

↳ custom_attributes
array

An optional list of additional attributes to attach to each Cloud PubSub message published for this notification subscription.

↳ event_types
array

If present, only send notifications about listed event types. If empty, sent notifications for all event types. Acceptablue values include "OBJECT_FINALIZE" , "OBJECT_METADATA_UPDATE" , "OBJECT_DELETE" , "OBJECT_ARCHIVE" .

↳ object_name_prefix
string

If present, only apply this notification configuration to object names that begin with this prefix.

↳ payload_format
string

The desired content of the Payload. Acceptable values include "JSON_API_V1" , "NONE" . Defaults to "JSON_API_V1" .

Returns
Type
Description

notification

Parameter
Name
Description
id
string

The ID of the notification to access.

Returns
Type
Description

notifications

Parameters
Name
Description
options
array

Configuration options.

↳ resultLimit
int

Limit the number of results returned in total. Defaults to 0 (return all results).

Returns
Type
Description
Google\Cloud\Core\Iterator\ItemIterator<\google\cloud\storage\notification>

delete

Parameters
Name
Description
options
array

Configuration options.

↳ ifMetagenerationMatch
string

If set, only deletes the bucket if its metageneration matches this value.

↳ ifMetagenerationNotMatch
string

If set, only deletes the bucket if its metageneration does not match this value.

Returns
Type
Description
void

update

Parameters
Name
Description
options
array

Configuration options.

↳ ifMetagenerationMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.

↳ ifMetagenerationNotMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.

↳ predefinedAcl
string

Predefined ACL to apply to the bucket. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ predefinedDefaultObjectAcl
string

Apply a predefined set of default object access controls to this bucket. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ projection
string

Determines which properties to return. May be either "full" or "noAcl" .

↳ fields
string

Selector which will cause the response to only return the specified fields.

↳ acl
array

Access controls on the bucket.

↳ cors
array

The bucket's Cross-Origin Resource Sharing (CORS) configuration.

↳ defaultObjectAcl
array

Default access controls to apply to new objects when no ACL is provided.

↳ lifecycle
array|Lifecycle

The bucket's lifecycle configuration.

↳ logging
array

The bucket's logging configuration, which defines the destination bucket and optional name prefix for the current bucket's logs.

↳ storageClass
string

The bucket's storage class. This defines how objects in the bucket are stored and determines the SLA and the cost of storage. Acceptable values include the following strings: "STANDARD" , "NEARLINE" , "COLDLINE" and "ARCHIVE" . Legacy values including "MULTI_REGIONAL" , "REGIONAL" and "DURABLE_REDUCED_AVAILABILITY" are also available, but should be avoided for new implementations. For more information, refer to the Storage Classes documentation. Defaults to "STANDARD" .

↳ autoclass
array

The bucket's autoclass configuration. Buckets can have either StorageClass OLM rules or Autoclass, but not both. When Autoclass is enabled on a bucket, adding StorageClass OLM rules will result in failure.

↳ versioning
array

The bucket's versioning configuration.

↳ website
array

The bucket's website configuration.

↳ billing
array

The bucket's billing configuration.

↳ billing
bool

.requesterPays When true , requests to this bucket and objects within it must provide a project ID to which the request will be billed.

↳ labels
array

The Bucket labels. Labels are represented as an array of keys and values. To remove an existing label, set its value to null .

↳ encryption
array

Encryption configuration used by default for newly inserted objects.

↳ encryption
string

.defaultKmsKeyName A Cloud KMS Key used to encrypt objects uploaded into this bucket. Should be in the format projects/my-project/locations/kr-location/keyRings/my-kr/cryptoKeys/my-key . Please note the KMS key ring must use the same location as the bucket.

↳ defaultEventBasedHold
bool

When true , newly created objects in this bucket will be retained indefinitely until an event occurs, signified by the hold's release.

↳ retentionPolicy
array

Defines the retention policy for a bucket. In order to lock a retention policy, please see Google\Cloud\Storage\Bucket::lockRetentionPolicy() .

↳ retentionPolicy
int

.retentionPeriod Specifies the duration that objects need to be retained, in seconds. Retention duration must be greater than zero and less than 100 years.

↳ iamConfiguration
array

The bucket's IAM configuration.

↳ iamConfiguration
bool

.bucketPolicyOnly.enabled this is an alias for $iamConfiguration.uniformBucketLevelAccess.

↳ iamConfiguration
bool

.uniformBucketLevelAccess.enabled If set and true, access checks only use bucket-level IAM policies or above. When enabled, requests attempting to view or manipulate ACLs will fail with error code 400. NOTE: Before using Uniform bucket-level access, please review the feature documentation , as well as Should You Use uniform bucket-level access

↳ iamConfiguration
string

.publicAccessPrevention The bucket's Public Access Prevention configuration. Currently, 'inherited' and 'enforced' are supported. defaults to inherited . For more details, see Public Access Prevention .

Returns
Type
Description
array

compose

Parameters
Name
Description
sourceObjects
string[]|array< Google\Cloud\Storage\StorageObject >

The objects to compose.

name
string

The name of the composed object.

options
array

Configuration options.

↳ predefinedAcl
string

Predefined ACL to apply to the composed object. Acceptable values include, "authenticatedRead" , "bucketOwnerFullControl" , "bucketOwnerRead" , "private" , "projectPrivate" , and "publicRead" .

↳ metadata
array

Metadata to apply to the composed object. The available options for metadata are outlined at the JSON API docs .

↳ ifGenerationMatch
string

Makes the operation conditional on whether the object's current generation matches the given value.

↳ ifMetagenerationMatch
string

Makes the operation conditional on whether the object's current metageneration matches the given value.

Returns
Type
Description

info

Parameters
Name
Description
options
array

Configuration options.

↳ ifMetagenerationMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.

↳ ifMetagenerationNotMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.

↳ projection
string

Determines which properties to return. May be either "full" or "noAcl" .

Returns
Type
Description
array

reload

Parameters
Name
Description
options
array

Configuration options.

↳ ifMetagenerationMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.

↳ ifMetagenerationNotMatch
string

Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.

↳ projection
string

Determines which properties to return. May be either "full" or "noAcl" .

Returns
Type
Description
array

name

Retrieves the bucket's name.

Example:

 echo $bucket->name(); 
Returns
Type
Description
string

currentLifecycle

Parameter
Name
Description
options
array

[optional] Configuration options.

Returns
Type
Description

isWritable

Returns whether the bucket with the given file prefix is writable.

Tries to create a temporary file as a resumable upload which will not be completed (and cleaned up by GCS).

Parameter
Name
Description
file
string

[optional] File to try to write.

Returns
Type
Description
bool

iam

Returns
Type
Description
Google\Cloud\Core\Iam\Iam

lockRetentionPolicy

Parameters
Name
Description
options
array

Configuration options.

↳ ifMetagenerationMatch
string

Only locks the retention policy if the bucket's metageneration matches this value. If not provided the locally cached metageneration value will be used, otherwise an exception will be thrown.

Returns
Type
Description
array

signedUrl

See also:

Parameters
Name
Description
expires
Google\Cloud\Core\Timestamp | DateTimeInterface |int

Specifies when the URL will expire. May provide an instance of Google\Cloud\Core\Timestamp , http://php.net/datetimeimmutable , or a UNIX timestamp as an integer.

options
array

Configuration Options.

↳ cname
string

The CNAME for the bucket, for instance https://cdn.example.com . Defaults to https://storage.googleapis.com .

↳ contentMd5
string

The MD5 digest value in base64. If you provide this, the client must provide this HTTP header with this same value in its request. If provided, take care to always provide this value as a base64 encoded string.

↳ contentType
string

If you provide this value, the client must provide this HTTP header set to the same value.

↳ forceOpenssl
bool

If true, OpenSSL will be used regardless of whether phpseclib is available. Defaults to false .

↳ headers
array

If additional headers are provided, the server will check to make sure that the client provides matching values. Provide headers as a key/value array, where the key is the header name, and the value is an array of header values. Headers with multiple values may provide values as a simple array, or a comma-separated string. For a reference of allowed headers, see Reference Headers . Header values will be trimmed of leading and trailing spaces, multiple spaces within values will be collapsed to a single space, and line breaks will be replaced by an empty string. V2 Signed URLs may not provide x-goog-encryption-key or x-goog-encryption-key-sha256 headers.

↳ keyFile
array

Keyfile data to use in place of the keyfile with which the client was constructed. If $options.keyFilePath is set, this option is ignored.

↳ keyFilePath
string

A path to a valid keyfile to use in place of the keyfile with which the client was constructed.

↳ scopes
string|array

One or more authentication scopes to be used with a key file. This option is ignored unless $options.keyFile or $options.keyFilePath is set.

↳ queryParams
array

Additional query parameters to be included as part of the signed URL query string. For allowed values, see Reference Headers .

↳ version
string

One of "v2" or "v4". Defaults to * "v2" .

Returns
Type
Description
string

generateSignedPostPolicyV4

See also:

Parameters
Name
Description
objectName
string

The path to the file in Google Cloud Storage, relative to the bucket.

expires
Google\Cloud\Core\Timestamp | DateTimeInterface |int

Specifies when the URL will expire. May provide an instance of Google\Cloud\Core\Timestamp , http://php.net/datetimeimmutable , or a UNIX timestamp as an integer.

options
array

Configuration options

↳ bucketBoundHostname
string

The hostname for the bucket, for instance cdn.example.com . May be used for Google Cloud Load Balancers or for custom bucket CNAMEs. Defaults to storage.googleapis.com .

↳ conditions
array

A list of arrays containing policy matching conditions (e.g. eq , starts-with , content-length-range ).

↳ fields
array

Additional form fields (do not include x-goog-signature , file , policy or fields with an x-ignore prefix), given as key/value pairs.

↳ forceOpenssl
bool

If true, OpenSSL will be used regardless of whether phpseclib is available. Defaults to false .

↳ keyFile
array

Keyfile data to use in place of the keyfile with which the client was constructed. If $options.keyFilePath is set, this option is ignored.

↳ keyFilePath
string

A path to a valid Keyfile to use in place of the keyfile with which the client was constructed.

↳ scheme
string

Either http or https . Only used if a custom hostname is provided via $options.bucketBoundHostname . If a custom bucketBoundHostname is provided, defaults to http . In all other cases, defaults to https .

↳ scopes
string|array

One or more authentication scopes to be used with a key file. This option is ignored unless $options.keyFile or $options.keyFilePath is set.

↳ virtualHostedStyle
bool

If true , URL will be of form mybucket.storage.googleapis.com . If false , storage.googleapis.com/mybucket . Defaults to false .

Returns
Type
Description
array
An associative array, containing (string) `uri` and (array) `fields` keys.

static::lifecycle

Parameter
Name
Description
lifecycle
array

[optional] A lifecycle configuration. Please see here for the expected structure.

Returns
Type
Description

Constants

NOTIFICATION_TEMPLATE

  Value: '//pubsub.googleapis.com/%s' 
 

TOPIC_TEMPLATE

  Value: 'projects/%s/topics/%s' 
 

TOPIC_REGEX

  Value: '/projects\\/[^\\/]*\\/topics\\/(.*)/' 
 
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