(PHP ActiveX) OneDrive -- List Large Directory

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Demonstrates how to get the entire collection of DriveItem children when the collection is large and multiple pages need to be requested. To test this example, I created a DriveItem with 450 children.

Note: This example requires Chilkat v9.5.0.97 or greater.

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

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

// This example uses the OAuth client credentials flow.
// See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

// Use your client ID, client secret, and tenant ID in the following lines
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$json = new COM("Chilkat.JsonObject");
$json->UpdateString('client_id','2871da2c-8176-4b7f-869b-2311aa82e743');
$json->UpdateString('client_secret','2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH');
$json->UpdateString('scope','https://graph.microsoft.com/.default');
$json->UpdateString('token_endpoint','https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token');

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Http')
$http = new COM("Chilkat.Http");
$http->AuthToken = $json->emit();

// This example will get the DriveItems in /lots-of-files, which has 450 children..
$http->SetUrlVar('item_path','/lots-of-files');
$http->SetUrlVar('user_id','4fe732c3-322e-4a6b-b729-2fd1eb5c6104');

$json->EmitCompact = 0;

// This loop will download DriveItems in sets of 25 until no more exist.
$bGetMore = 1;
// (Add the $top query parameter to define the page size, i.e. the max number of results to return).
$nextLink = 'https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:{$item_path}:/children?$top=25';

while (($bGetMore == 1)) {

    // Get the next chunk of DriveItems
    $resp = $http->quickGetStr($nextLink);
    if ($http->LastMethodSuccess != 1) {
        print $http->LastErrorText . "\n";
        exit;
    }

    // The response should be JSON.
    $json->Load($resp);

    // A successful response should return a status code of 200.
    if ($http->LastStatus != 200) {
        print $json->emit() . "\n";
        print 'Response status = ' . $http->LastStatus . "\n";
        exit;
    }

    // Iterate over the DriveItems in the JSON response:
    $i = 0;
    $numItems = $json->SizeOfArray('value');
    while ($i < $numItems) {
        $json->I = $i;
        print 'name: ' . $json->stringOf('value[i].name') . "\n";
        $i = $i + 1;
    }

    // If a nextLink was included in the JSON, use it to get the next set of 50 DriveItems.
    // Otherwise, exit the loop.
    if ($json->HasMember('\'@odata.nextLink\'') == 1) {
        $nextLink = $json->stringOf('\'@odata.nextLink\'');
        print 'nextLink: ' . $nextLink . "\n";
    }
    else {
        $bGetMore = 0;
    }

}


?>