using the sourcerer plugin the code written in php disappears

Question

I try to hide a menu item programmatically, I found this publication that explains the process as follows

1. Create custom html module
2. Install and enable the Sourcerer plugin
3. In the module editor use a code similar to this

I have done the steps, but I have not achieved the code written in php to be executed, in fact when trying a simple {source} <?php echo 'test'; ?> {/source} or {source}[[php echo 'test'; ?]]{/​​source} the code is not executed, nor is it shown as a comment. It just disappears. If I disable Sourcerer the code is shown as text. I tested the same code in a new instance of joomla and it works properly. Going back to the joomla instance of the project where I work, I verify that the Sourcerer plugin is enabled, verify that the configuration of executing html, css, js and php code is enabled. I have tested with different editors. Unfortunately the same result.

As a final comment I can verify that using Sourcerer, the code written in html and javascript is executed properly. In fact, I temporarily hide the menu using an ajax call to a complement controller method. This works, but for a moment the menu item is displayed and I want to avoid this and do it with php

Update 1

Following Robbie Jackson recommendation I have created a module with logic to hide the menu item, the module has the position debug. For some reason and although the CSS is added into the style tag the menu item remains visible. The same happens if I try to inject a style sheet

mod_name.php

<?php

defined('_JEXEC') or die;

require_once dirname(__FILE__) . '/helper.php';

$currentUser = modName::hideMenuItem();

Using addStyleDeclaration

class ModNameHelper
{
    public static function hideMenuItem()
    {
        $accountType = JFactory::getUser()->getParam('account_type');

        if ($accountType !== 'agency') {
            $style = 'li.item116 { display: none; }';
            JFactory::getDocument()->addStyleDeclaration($style);
        }
    }
}

Using addStyleSheet

helper.php

class ModNameHelper
{
    public static function hideMenuItem()
    {
        $accountType = JFactory::getUser()->getParam('account_type');

        if ($accountType !== 'agency') {
            JFactory::getDocument()->addStyleSheet(JURI::root() . 'modules/mod_name/mod_name.css', ["version" => "auto"]);
        }
    }
}

In the example where I use addStyleDeclaration in head in the style tag it is added li.item116 { display: none; } and in the example using addStyleSheet the style sheet is injected but in both cases the menu item remains visible.

Any ideas? Thanks in advance

I will appreciate your help

Answer 1

1. From https://www.regularlabs.com/extensions/sourcerer/tutorial:

Sourcerer already creates the $document (or $doc) object for you when it is needed. So you do not have to initialize this yourself.

    {source}
    <?php
        if (true) {
            $style = '.item-135 {display: none;}';
            $doc->addStyleDeclaration($style);
        }
    ?>
    {/source}

2. I would also urge you to remove many of those extra spaces so that you never have any accidental code breakages.
   Opening <?php tag must not have a space in it. https://3v4l.org/rPd0Y versus https://3v4l.org/QYRVt

3. Also from the FAQ:

Make sure you are using the WYSIWYG view of your editor.

4. Also from the FAQ:

You can set certain security settings in the Sourcerer plugin. This way you can prevent certain user group levels and certain content types to not allow the use of Sourcerer. Please look in the html output source of you site to see if you have a Sourcerer comment that tells you this is the case.

5. Also in the FAQ:

If the php tags are getting stripped out, try double bracket syntax (your attempt was missing the ?). Here's how that would look:

    {source}
    [[?php
        if (true) {
            $style = '.item-135 {display: none;}';
            $doc->addStyleDeclaration($style);
        }
    ?]]
    {/source}

6. Your simplest test rules out a php error, but for other researchers: errors can be discovered by viewing the generated source.