This function will delete links framing images in your post content permanently [Wordpress]

remove_images_links_from_post_content_permanently.php

function remove_image_link_permanently(){
	$all_posts = get_posts( array(
	'post_type' => 'post',						
	'numberposts' => -1,
	'status' => 'any'
	));									
	foreach ($all_posts as $single_post){
		$post_id = $single_post->ID;
		$content = $single_post->post_content;
		$updated_content = 
        preg_replace(
            array('{<a(.*?)(wp-att|wp-content\/uploads)[^>]*><img}',
                '{ wp-image-[0-9]*" /></a>}'),
            array('<img','" />'),
            $content
        );		
		$updated_post = array( 
					'ID' => $post_id,
					'post_content' => $updated_content,
		);	
		$update_post = wp_update_post($updated_post);
	}
 }

Hello, this function did not work. I put it in functions.php. Is there any other way to use it?

@juniorbra which action hook did you use?

@sabrina-zeidan I just copied your function and pasted it into functions.php.

@juniorbra this is a function. You need to connect it to the action to fire it. For example, after_setup_theme action, then to fire it you'll use: add_action('after_setup_theme', 'remove_image_link_permanently'); + would be nice to check the actioned you hook to, runs only once.
I would recommend getting acquainted with WP Actions and Hooks concept before all this. Or make a backup at least :)