(PHP ActiveX) Get Container Metadata

Azure Storage Blob Service REST API: Sample code to get the user-defined metadata of a container.

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

// Azure Blob Service Example: Get Container User-Defined Metadata
// See also: https://msdn.microsoft.com/en-us/library/azure/ee691976.aspx

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

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

// Connect to the Azure Storage Blob Service
$bTls = 1;
$port = 443;
$bAutoReconnect = 1;
// In this example, the storage account name is "chilkat".
$success = $rest->Connect('chilkat.blob.core.windows.net',$port,$bTls,$bAutoReconnect);
if ($success != 1) {
    print $rest->LastErrorText . "\n";
    exit;
}

// Provide Azure Cloud credentials for the REST call.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.AuthAzureStorage')
$azAuth = new COM("Chilkat.AuthAzureStorage");
$azAuth->AccessKey = 'AZURE_ACCESS_KEY';
// The account name used here should match the 1st part of the domain passed in the call to Connect (above).
$azAuth->Account = 'chilkat';
$azAuth->Scheme = 'SharedKey';
$azAuth->Service = 'Blob';
// This causes the "x-ms-version: 2021-08-06" header to be automatically added.
$azAuth->XMsVersion = '2021-08-06';
$success = $rest->SetAuthAzureStorage($azAuth);

// Note: The application does not need to explicitly set the following
// headers: x-ms-date, Authorization.  These headers
// are automatically set by Chilkat.

// The expected success response is a 200 response status code with no response body.
// In this example, we are getting the metadata of the container named "mycontainer".
$responseStr = $rest->fullRequestNoBody('GET','/mycontainer?restype=container&comp=metadata');
if ($rest->LastMethodSuccess != 1) {
    print $rest->LastErrorText . "\n";
    exit;
}

// When successful, the Azure Storage service will respond with a 200 response status code,
// with no response body.

if ($rest->ResponseStatusCode != 200) {
    // Examine the request/response to see what happened.
    print 'response status code = ' . $rest->ResponseStatusCode . "\n";
    print 'response status text = ' . $rest->ResponseStatusText . "\n";
    print 'response header: ' . $rest->ResponseHeader . "\n";
    print 'response body (if any): ' . $responseStr . "\n";
    print '---' . "\n";
    print 'LastRequestStartLine: ' . $rest->LastRequestStartLine . "\n";
    print 'LastRequestHeader: ' . $rest->LastRequestHeader . "\n";
    exit;
}

// The user-defined metadata is located in the response header.
// The full response header can be obtained like this:
print 'response header: ' . $rest->ResponseHeader . "\n";
print '--' . "\n";

// Metadata headers begin with "x-ms-meta-"
// Individual response header fields can be retrieved like this:
print 'x-ms-meta-Category: ' . $rest->responseHdrByName('x-ms-meta-Category') . "\n";
print 'x-ms-meta-Resolution: ' . $rest->responseHdrByName('x-ms-meta-Resolution') . "\n";

print 'Success.' . "\n";

?>