Search for videos in a YouTube channel using youtube API with php

Once you create a project in google developer console and grant nessary access to that project you can use the Clinet ID, email address (not your email address – this is a email address that get created associated with project) and .p12 file (you can download this file from google developer console and upload to a private location in your web server).

Download the Google PHP client library from GitHub. and include it in your script.

require_once 'Google/autoload.php';
require_once 'Google/Client.php';
require_once 'Google/Service/YouTube.php';

PHP code is like below, define the global variable

    $app_name ='forsrilankans-LIVE';
    $client_id = 'XXXXXXXXXXXXXXXXXXXXX.apps.googleusercontent.com';
    $Email_address = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX@developer.gserviceaccount.com';     
    $key_file_location = dirname(dirname( dirname(__FILE__) )) .'/private/some-file-name.p12';

Accessing the google service.

    $client = new Google_Client();      
    $client->setApplicationName($app_name);
    $key = file_get_contents($key_file_location);   
    $scopes ="https://www.googleapis.com/auth/youtube.readonly"; 
    
    $cred = new Google_Auth_AssertionCredentials($Email_address, array($scopes), $key);
    $client->setAssertionCredentials($cred);
    if($client->getAuth()->isAccessTokenExpired()) 
    {
        $client->getAuth()->refreshTokenWithAssertion($cred);
    }

    $youtube = new Google_Service_YouTube($client);

    $videos = $youtube->search->listSearch('snippet', array(
			'channelId' => 'UCFtEEv80fQVKkD4h1PF-Xqw', 
			'maxResults' => 50 ,
			'order' => 'date',		 
			'q' => 'visual studio',		 
			'type' => 'video',	  
			'videoDuration' => 'any',				
		));