Remove Cookie Consent banner markup after consent accepted

I think you just need to create a folder in your plugins folder under your wp-content folder. 

You can call it BT-Cookie-Consent, then name the file BT-Cookie-Consent.php

Hi Jon,

If you're just looking for guidance on how to actually create/install a plugin, it's really, really easy, but I'll walk you through it.

So first off, ALL plugins go into the wp-content/plugins folder of your WordPress (WP) folder.

Plugins can either be a single file (for pretty simple plugins) or they can be in a sub-folder (for more complex plugins that have more than one file). In your case, your plugin is really simple, so you can just create a new yourplugin.php file in your plugins folder, like this:

.../wp-content/plugins/btcookieconsent.php

When you're creating single-file plugins like this, the filename doesn't really matter. You could call it foobar.php if you wanted. What really matters is that comment block at the top. The WP admin area will look for that comment block and parse it for information about the plugin. For example, it literally looks for a line that contains "Plugin Name:" in that comment block and then says, "Whatever is after that is the name of the plugin" and so on.

Once the plugin file(s) are in place, you then go to your admin area, go to the plugins section. That plugins page will scan the wp-content/plugins folder, read all the files, and present that list, and you'll see the new one in there, but it won't be activated yet:

WP manages plugin activation via a record in the database. So when you click on Activate, it'll write a record into the database indicating that you've activated that plugin.

When the regular WP content page loads, WP will query the DB for all activated plugins, then load them all up and from there, the code inside the plugin is what matters. So in this case, your main code is this line here:

add_filter('cli_show_cookie_bar_only_on_selected_pages', 'bt_testing_cookieconsent_filter', 10, 1);

That says, "When something in the current page runs a filter called "cli_show_cookie_bar_only_on_selected_pages", then run the function "bt_testing_cookieconsent_filter" at priority 10 (priority indicates the order in which plugins run in case there are more than one that are listening for the same filter - the lower the number, the earlier it runs).

A filter is basically there to allow you to modify something.

Original Content -> Filter Plugin -> Modified Content returned from Filter

So if you wanted a filter that simply changed everything to uppercase, you'd have a filter function like this:

function an_uppercasing_filter_function($data)
{
  return strtoupper($data);
}

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The result would be:

Content xYz -> an_uppercasing_filter_function -> CONTENT XYZ

So in your particular case, the presumption is that this WebToffee plugin is creating some HTML for the banner and then passing the HTML to a filter hook called cli_show_cookie_bar_only_on_selected_pages. 

Your plugin would then return an empty string "" if you wanted to suppress that content.

So Chris's function will probably do the right thing, but hopefully you now understand how to install the plugin and how/why it works.

Both really helpful, thank you!!    I've created the plugin, activated, and know what the function is doing/looking for now.   Not working with that particular cookie atm, but i think if i fiddle around with that function, i should beable to get this to work.   it's the <div class="wt-cli-cookie-bar-container" data-nosnippet="true">  div which we are trying to target/remove 

For something small like this, you should be able to just add that function to your functions.php instead of creating a plugin. I don't know if it is best practice, but because it is just the one small function, I tend to put it in my functions.php and save plug ins for something that needs more robust code.