Permalink Short code showing unnecessary link text inside the loop

Question

Recently I need Help regarding this permalink shortcode

function my_permalink(){
ob_start();
the_permalink();
return ob_get_flush();}

add_shortcode('my_permalink','my_permalink');

for this, I get a shortcode [my_permalink], it's working fine

But the problem is when I use this shortcode on my WordPress Posts, Pages, CPT, CT or any custom Archive Page it shows me some unnecessary link text which is at top of the loop and also it does not include any HTML tag

I am showing the screenshot and the link appearing position in the posts

Code:

    </div>
        <div class="entry-content">
            https://careerfeed.net/jobs/kfri-recruitment-2021-for-1-project-assistant/<div class="wprt-container"><p>KFRI Recruitment 2021 for 1 Project Assistant Applications are invited from eligible candidates for the post of one <b>Project Assistant </b>under the project KFRI/RP 823/2021 entitled “Ecological studies on post restoration success of threatened plants in situ.&#8221;</p>
https://careerfeed.net/jobs/kfri-recruitment-2021-for-1-project-assistant/
<p>&nbsp;</p>

Screenshot: The URL appears:

https://prnt.sc/15jcg6d

I just paste the shortcode:

https://prnt.sc/15jckza

Inside inspect Elements:

https://prnt.sc/15jct1q

Answer 1

ob_get_flush doesn't do what you think it does. You're assuming that it only ends the output buffer and returns its contents, which is incorrect, it also flushes the output buffer to the browser.

So this:

return ob_get_flush();

Is the same as this:

$content = ob_get_clean();
echo $content;
return $content;

Use ob_get_clean(); instead, which erases the output buffer instead of flushing it.