Reference documentation and code samples for the Cloud Datastore Client class Blob.
Represents a Blob value.
Blobs can be used to store binary data in Google Cloud Datastore.
Example:
use Google\Cloud\Datastore\DatastoreClient;
$datastore = new DatastoreClient();
$blob = $datastore->blob(file_get_contents(__DIR__ .'/family-photo.jpg'));
// Get the value of a blob by casting to a string.
echo (string) $blob;
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["# Cloud Datastore Client - Class Blob (1.33.1)\n\nVersion latestkeyboard_arrow_down\n\n- [1.33.1 (latest)](/php/docs/reference/cloud-datastore/latest/Blob)\n- [1.33.0](/php/docs/reference/cloud-datastore/1.33.0/Blob)\n- [1.32.3](/php/docs/reference/cloud-datastore/1.32.3/Blob)\n- [1.31.0](/php/docs/reference/cloud-datastore/1.31.0/Blob)\n- [1.30.0](/php/docs/reference/cloud-datastore/1.30.0/Blob)\n- [1.29.2](/php/docs/reference/cloud-datastore/1.29.2/Blob)\n- [1.28.2](/php/docs/reference/cloud-datastore/1.28.2/Blob)\n- [1.26.0](/php/docs/reference/cloud-datastore/1.26.0/Blob)\n- [1.25.0](/php/docs/reference/cloud-datastore/1.25.0/Blob)\n- [1.24.4](/php/docs/reference/cloud-datastore/1.24.4/Blob)\n- [1.23.0](/php/docs/reference/cloud-datastore/1.23.0/Blob)\n- [1.22.1](/php/docs/reference/cloud-datastore/1.22.1/Blob)\n- [1.21.2](/php/docs/reference/cloud-datastore/1.21.2/Blob)\n- [1.19.0](/php/docs/reference/cloud-datastore/1.19.0/Blob)\n- [1.18.1](/php/docs/reference/cloud-datastore/1.18.1/Blob)\n- [1.17.1](/php/docs/reference/cloud-datastore/1.17.1/Blob) \nReference documentation and code samples for the Cloud Datastore Client class Blob.\n\nRepresents a Blob value.\n\nBlobs can be used to store binary data in Google Cloud Datastore.\n\nExample: \n\n use Google\\Cloud\\Datastore\\DatastoreClient;\n\n $datastore = new DatastoreClient();\n\n $blob = $datastore-\u003eblob(file_get_contents(__DIR__ .'/family-photo.jpg'));\n\n // Get the value of a blob by casting to a string.\n\n echo (string) $blob;\n\nNamespace\n---------\n\nGoogle \\\\ Cloud \\\\ Datastore"]]
