how can i use html in Replacement Variable?

[Bester]

Thank you very much Lynne for help!

I have found this thread https://vborg.vbsupport.ru/showthrea...ht=str_replace it is acutually very helping, this is just what i needed but:

i did 2 plugins

1st

$search = array(
'what',
);
$replace = array(
'[.URL="http://www.what.com"]what[/URL]',
);
$this->post['pagetext'] = str_replace($search, $replace, $this->post['pagetext']);

and the other

$search = array(
'what',
);
$replace = array(
'[.URL="http://www.what.com"]what[/URL]',
);
$this->post['pagetext'] = str_replace($search, $replace, $this->post['pagetext']);

(without these red dots)

and is seemingly works very fine but what i'm writing a post and take twice 'preview post' and then 'submit reply' it becomes like this:



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Need some further help