How to disable shortcodes in pages/posts with a certain string in the URL?

Question

I need to disable shortcodes on every page or post which url contains /?task=delete&postid=

Example url:
blog url/some random symbols/?task=delete&postid=some random symbols

Answer 1

you can place and try this snippet in your theme's functions.php file

Case 1

function remove_shortcode_exec_on_query(){

    // condition(s) if you need to decide not to disabling shortcode(s)
    if( empty( $_GET["task"] ) || empty( $_GET["postid"] ) || "delete" !== $_GET["task"] )

        return;

    // Condition(s) at top are not met, we can remove the shortcode(s)
    remove_all_shortcodes();    
}

add_action('wp','remove_shortcode_exec_on_query');

Update

Case 2

if you want to remove only some specific shortcodes instead of removing all (which is not a good idea if you are using any shortcode based/visual composer based theme), you can use remove_shortcode() function instead of remove_all_shortcodes()

example code

function remove_shortcode_exec_on_query(){

    // condition(s) if you need to decide not to disabling shortcode(s)
    if( empty( $_GET["task"] ) || empty( $_GET["postid"] ) || "delete" !== $_GET["task"] )

        return;

    // Condition(s) at top are not met, we can remove the shortcode(s)
    remove_shortcode('NOT_NEEDED_SHORTCODE_STRING_1');
    remove_shortcode('NOT_NEEDED_SHORTCODE_STRING_2');    
}

add_action('wp','remove_shortcode_exec_on_query');

Replace NOT_NEEDED_SHORTCODE_STRING with the shortcode string you want to remove

Case 3

If you need to disable some shortcodes from some specific part of the page, as example from page/post content, you will need to use filters for that specific part.

Example 1 ( removing all shortcodes from content )

function remove_shortcode_exec_on_query( $content ) {

    // condition(s) if you need to decide not to disabling shortcode(s)
    if( empty( $_GET["task"] ) || empty( $_GET["postid"] ) || "delete" !== $_GET["task"] ) 

        return $content;

   // Condition(s) at top are not met, we can remove the shortcode(s)
   return strip_shortcodes( $content );
}
add_filter( 'the_content', 'remove_shortcode_exec_on_query' );

Example 2 (Removing some specific shortcodes from content)

function remove_shortcode_exec_on_query( $content ) {

    // condition(s) if you need to decide not to disabling shortcode(s)
    if( empty( $_GET["task"] ) || empty( $_GET["postid"] ) || "delete" !== $_GET["task"] ) 

        return $content;

   // Condition(s) at top are not met, we can remove the shortcode(s)
   remove_shortcode('NOT_NEEDED_SHORTCODE_STRING_1');
   remove_shortcode('NOT_NEEDED_SHORTCODE_STRING_2');

   return $content;
}
add_filter( 'the_content', 'remove_shortcode_exec_on_query' );

Replace NOT_NEEDED_SHORTCODE_STRING with the shortcode string you want to remove

This example is about removing shortcode from "content" part of the page/post. if you want to apply it to some other part, the hook tag 'the_content' at add_filter( 'the_content', 'remove_shortcode_exec_on_query' ); will need to replaced by relevant filter hook tag. e.g. for title, it will be 'the_title'