Jump to content


Why is this hook causing ICS to have a parse error in ACP?


Go to solution Solved by Ryan Ashbrook,

Recommended Posts

All of the following testing was done on a production style ICS installation without `IN_DEV=true` or the developer toolset installed. It was just a naked ICS 4.5 installation with only my application installed as a third party application.

The hook in question:


/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )

class ts3integration_hook_AppLogo extends _HOOK_CLASS_

/* !Hook Data - DO NOT REMOVE */
public static function hookData() {
 return array_merge_recursive( array (
  'appmenu' => 
  array (
    0 => 
    array (
      'selector' => '#acpAppList',
      'type' => 'add_before',
      'content' => '',
), parent::hookData() );
/* End Hook Data */


Note that it has no content in it.

The parser error I see is:


syntax error, unexpected 'endforeach' (T_ENDFOREACH), expecting elseif (T_ELSEIF) or else (T_ELSE) or endif (T_ENDIF)

How I verified it was my hook

When i include this hook in my project, compile my project and install it on a fresh installation of IPS, I get a 500 error. 

After a lot of debugging i've confirmed it is this hook that's causing the issue by filtering it out in the \IPS\Theme PHP file (./system/Theme/Theme.php).

if ($data['class'] != 'ts3integration_hook_AppLogo') {
    $class = "IPS\\Theme\\" . $data['class'] . "_tmp";
    $templateHooks = array_merge_recursive( $templateHooks, $class::hookData() );

When I wrap that code in an if statement filtering out my hook, the page loads just fine.

How I debugged further

I found the relevant code in Theme.php and updated it to print a lot of information.

	if ( @eval( $compiledGroup ) === FALSE )
		throw new \IPS\Theme\TemplateException( 'Invalid Template', 1000, NULL, array( 'group' => $group, 'app' => $app, 'location' => $location ), $this );
catch ( \ParseError $e )
    header('Content-Type: text/plain;');
    echo $app . '/' . $location . '/' . $group . PHP_EOL;
    echo $compiledGroup;

Which resulted in this

ParseError Object
    [message:protected] => syntax error, unexpected 'endforeach' (T_ENDFOREACH), expecting elseif (T_ELSEIF) or else (T_ELSE) or endif (T_ENDIF)
    [string:Error:private] => 
    [code:protected] => 0
    [file:protected] => /var/www/html/system/Theme/Theme.php(854) : eval()'d code
    [line:protected] => 238
    [trace:Error:private] => Array
            [0] => Array
                    [file] => /var/www/html/system/Dispatcher/Admin.php
                    [line] => 120
                    [function] => getTemplate
                    [class] => IPS\_Theme
                    [type] => ->

            [1] => Array
                    [file] => /var/www/html/system/Dispatcher/Dispatcher.php
                    [line] => 109
                    [function] => init
                    [class] => IPS\Dispatcher\_Admin
                    [type] => ->

            [2] => Array
                    [file] => /var/www/html/admin/index.php
                    [line] => 14
                    [function] => i
                    [class] => IPS\_Dispatcher
                    [type] => ::


    [previous:Error:private] => 

// REMOVED LONG $compiledGroup OUTPUT

The $compiledGroup output was too long to display here, however I did discover which line was causing the issue by running it through a PHP syntax validator and found the unexpected `endforeach;`. You can see it on the last line of this block:

if ( $appAndModule . "_" . $key === $currentItem ):
$return .= <<<CONTENT



I don't understand how my hook above causes this issue. Especially since the unexpected endforeach; has nothing to do with my hook. To me this seems like a bug in ICS and not an issue with my application, but I can't tell for certain.

Edited by MrFisc
Link to comment
Share on other sites


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...

Important Information

We use technologies, such as cookies, to customise content and advertising, to provide social media features and to analyse traffic to the site. We also share information about your use of our site with our trusted social media, advertising and analytics partners. See more about cookies and our Privacy Policy