How to prevent WordPress Media Library from removing image?

I have a custom post type that must have its feature image. Its feature image also appears in the Media Library where user can delete the image/attachment file permanently. But I want to prevent user from deleting the feature image of my custom post type. So I use the following hook to intercept the ajax request, validate if user is deleting the image of my custom post type and stop the process by using wp_die().

add_filter('pre_delete_attachment', 'check_my_custom_post_type', 0, 2); function check_my_custom_post_type($  delete, $  post) {     if (Yes it is image of my custom type) {         wp_die('My message', 'My title', ['response' => 400]);     } } 

It works fine on the server side. The image of my custom post type cannot be deleted. But Media Library, on the client side, still removes the image from its views even the image on the server side has not been deleted and an exception 400 has been thrown.

How to prevent Media Library from removing images from its views on the client side if image has not been deleted on the server side?

Prevent WordPress from convert ✔ (& other text symbols/emoji) to SVG [duplicate]

In my page content, I have the following:

<li><span class="tick">✔</span> Fully qualified and insured technicians, with over a decade of experience</li> 

On the frontend, WordPress changes the ✔ to:

<img draggable="false" role="img" class="emoji" alt="✔" src="https://s.w.org/images/core/emoji/13.0.1/svg/2714.svg"> 

I can’t change the colour of this SVG image, it is black, and we need it white.

How do I prevent the conversion of emojis to SVG?

EDIT

I’ve found this answer which says to use:

add_filter( 'emoji_svg_url', '__return_false' ); 

All that does is break the image but display the alt text in the correct format:

enter image description here

The same code remains:

<img draggable="false" role="img" class="emoji" alt="✔" src="https://s.w.org/images/core/emoji/13.0.1/svg/2714.svg"> 

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how to make sure your wordpress is clean of any old files from previous themes so you can install a new theme

with no issues from past themes/plugins. The goal here is I am planning to install a premium theme for my existing WP site and use Divi Plugin So far I’ve tried contacting Bluehost but they just did a ‘scan’ or something so I don’t know if they understood what I meant. I’m relatively new to WP. Tinkering for about 2 years. I’ve tried google searching and irrelevant articles pop up. When searching this site I got 0 results. Hope I’m articulating my question well.

Add WordPress hook outside of Plugin or Theme

We have the following code that is used to hide our core theme so that it can’t be enabled directly and you can only enable the child themes from the WordPress Dashboard.

function hide_core_theme($  themes) {     unset($  themes['nacore']);     return $  themes; } add_action('wp_prepare_themes_for_js', 'hide_core_theme'); 

However if you put this code inside the functions.php file of either the Parent or Child theme it will only hide the core theme when one of them is enabled… e.g. if someone was to turn on another theme the core theme would appear again.

Another option is to add this code inside a custom plugin… but it means having it enabled and a user could always disable this plugin to get around it… plus we’re not too keen on having a plugin to turn off a theme as it feels pretty detached.

Is it possible to add some hooks that are outside of a Theme or Plugin? And therefore are called regardless of what themes or plugins are enabled?

Automatically add Link Images to Posts in WordPress if has not linked before or has specified class

I use this code to Automatically add Link Images to Posts in WordPress.

function wpguy_linked_image($  content){ if (is_single() === TRUE){ $  searchfor = '/(<img[^>]*\/>)/';   $  replacewith = '<a target="_blank" href="'.get_permalink().'">$  1</a>'; { $  content = preg_replace($  searchfor, $  replacewith, $  content); } } return $  content; } add_filter('the_content', 'wpguy_linked_image'); 

How can I add a condition that if the img tags are already linked or have class="no link me" , they will be excluded from linking?