PHP Class new item, cannot call it correctly?

My guess would be that you need to ditch the new in this line:

$ListOb = new $youtube->$Google_Playlist();

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sorry, no that doesn't work :(

I really need someone that is a PHP expert to take a look at the library and explain to me the structure a little, enough to get the new class object initiated, then I think I should be able to manage

Where have you initialized this variable $Google_Playlist
I hope for a function Google_Playlist() you have added $ symbol and made it to an variable.
$ListOb = $youtube->Google_Playlist();

use this way.

Thanks for helping with the syntax, that have me a new error :(

Can you see what this property should be? I can't see any "required" properties.

Notice: Undefined property: Google_YouTubeService::$Google_Playlist in xxx on line 70 (that is line 2 in your example above julianH)

Thanks.

that is line 2 in your example above julianH)

Doesn't make sense if it is

What the error is saying is that you have tried to do something like

$youtube->Google_Playlist()

Which won't work because as the error says Google_Playlist is not a member of Google_YouTube. It is a separate class

What does line 70 say exactly - can you post a full source listing?

<?php
require_once 'google-api-php-client/src/Google_Client.php';
require_once 'google-api-php-client/src/contrib/Google_YouTubeService.php';
require_once '../StdPHPErrors.php';

// Set your cached access token. Remember to replace $_SESSION with a
// real database or memcached.
session_start();

$client = new Google_Client();
$model = new Google_Model();
$client->setApplicationName('xxxx');

//xxxxxVideo Uploader ID stuff
$client->setClientId('xxxxxx);
$client->setClientSecret('xxxx');
$client->setRedirectUri('http://127.0.0.1:8080/YoutubeAPI/youtube.php');
//$client->setDeveloperKey('xxxxx'); // Server Key
$client->setDeveloperKey('xxxxx'); //Browser Key

/*
//xxx.xxx-xx ID stuff
$client->setClientId('xxxx.apps.googleusercontent.com');
$client->setClientSecret('xxxx-');
$client->setRedirectUri('xxxx');
$client->setDeveloperKey('xxxxx');
*/

$youtube = new Google_YoutubeService($client);
//unset($_SESSION); 

if (isset($_GET['code'])) {
echo1("1");
  $client->authenticate();
  $_SESSION['token'] = $client->getAccessToken();
  $redirect = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
  header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
}

if (isset($_SESSION['token'])) {
//echo1("2");
  $client->setAccessToken($_SESSION['token']);
}
$htmlBody = '';
if ($client->getAccessToken()) {
	//echo1("3");
	
  try {
  
	//echo1("3a");
	$playlists_optParams = array('mine' => 'true','maxResults' => '50');
    $playlistItems = $youtube->playlists->listPlaylists('snippet',$playlists_optParams);

    $htmlBody .= '<table>';
	$htmlBody .= '<tr><th>Title</th><th>Change Req</th><th>Changed?</th></tr>';
    foreach ($playlistItems['items'] as $item) {	
		//print_r1($item);
		//$htmlBody .= "<li>".$item['snippet']['title']." ID:".$item['id']."</li>";
			
		$htmlBody .= '<tr>';
		$title = $item['snippet']['title'];
		$id = $item['id'];
		
		$htmlBody .= '<td>'.$title.'</td>';
		
		if(!strstr($title,"Australian") && strstr($title, "Senate")) {
			$htmlBody .= '<td>Yes</td>';
			
			//update Playlist Name here
			$ListOb = new $youtube->Google_Playlist();
			$ListOb.setId($item['id']);
			$InSnip = new $youtube->Google_PlaylistSnippet();
			$InSnip.setChannelId($item['id']);
			$InSnip.setTitle(str_replace("Candidates Federal","Candidates Australian Federal",$title));
			$ListOb.setSnippet($InSnip);
			
			$playlistUpdate = $youtube->playlists->update('snippet',$ListOb);
			
				//error with update
				$htmlBody .= '<td class="bad">No</td>';
				
				//successful update
				$htmlBody .= '<td class="good">Yes</td>';
		} else {
			$htmlBody .= '<td>No</td>';
		}
		$htmlBody .= '</tr>';
		
    } //end for each item in Playlist
	$htmlBody .= '</table>';
	
  } catch (Google_ServiceException $e) {
    $htmlBody .= sprintf('<p>A service error occurred: <code>%s</code></p>',
      htmlspecialchars($e->getMessage()));
  } catch (Google_Exception $e) {
    $htmlBody .= sprintf('<p>An client error occurred: <code>%s</code></p>',
      htmlspecialchars($e->getMessage()));
  }

  $_SESSION['token'] = $client->getAccessToken();
} else {
	echo1("4");
	echo1("5");
	$state = mt_rand();
	$client->setState($state);
	$_SESSION['state'] = $state;

	$authUrl = $client->createAuthUrl();
	$htmlBody = <<<END
	<h3>Authorization Required</h3>
	<p>You need to <a href="$authUrl">authorize access</a> before proceeding.<p>
END;

}

?>

<!doctype html>
<html>
  <head>
    <title>My Uploads</title>
	<style>
		table tr td { border: 1pt black solid; }
		.bad {color:red;}
		.good {color:green;}
	</style>
  </head>
  <body>
	<h1>Youtube Project Output:</h1>
    <?php print $htmlBody; 
	
		echo1("<br /> Complete:".date("H:i:s"));	
	?>
  </body>
</html>

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Line 70: is

$ListOb = new $youtube->Google_Playlist();

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Which is not the same as Line 2 of my post

$ListOb = new Google_Playlist();

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Note the absence of the $youtube-> prefix in the second line of code.

Line 70 is trying to instantiate an object (new) using an existing object method call - which is like saying "Please pass the confused"

Line 12 - you have a missing closing apostorphe - although this is probably a result of you removing the name and replacing with xxxx

Other than that it does not appear that you have made any of the recommended changes (Lines 70 to 75).

Sorry, I really should look more carefully, and get some rest! Thanks for the help, very useful!

You are welcome - thanks for the points.