Example of using DescribeWorkflowExecutionRequest

describe_workflow.php

<?php

$workflowClient = WorkflowClient::create(ServiceClient::create($host));
$workflow = $workflowClient->newUntypedWorkflowStub(MyWorkflow::class);
$workflowClient->start($workflow);

$describeWorkflowExecutionRequest = new DescribeWorkflowExecutionRequest();
$describeWorkflowExecutionRequest->setNamespace('default');
$describeWorkflowExecutionRequest->setExecution($workflow->getExecution()->toProtoWorkflowExecution());

$result = $workflowClient->getServiceClient()->DescribeWorkflowExecution($describeWorkflowExecutionRequest);
dump($result);