Hide Links In Forums - php

Question

I've tried to hide link from none registered members, the BBcode works and it hides, but the HTML code doesn't work.
For example,
[link=http://www.brandbucket.com/]Brand Bucket[/link]
This hides well.
On the other hand..
http://www.char5.com
This doesn't hide at all, the hyperlink works fine.
Here's the code below for any help please, thanks.
$text = preg_replace("/\[file\=(.*?)\](.*?)\[\/file\]/is", $rep, $text);
$text = preg_replace("/\[link\=(.*?)\](.*?)\[\/link\]/is", $rep, $text);
$text = preg_replace("/\[url\=(.*?)\](.*?)\[\/url\]/is", $rep, $text);
$text = preg_replace("#(^|[\n ])([\w]+?://[^ \"\n\r\t<,]*)#is", "\\1".$rep, $text);
$text = preg_replace("#(^|[\n \]])((www|ftp)\.[\w+-]+?\.[\w+\-.]*(?(?=/)(/.+?(?=\s|,\s))|(?=\W)))#is", "\\1".$rep, $text);

Answer 1

My suggestion would be to use an if else statement and echo the elements on to the page if conditions are met.
For example on my website I have a logout button. It only shows if a user is logged in.
<?php
if(/*user is logged in*/) {
echo 'This is where the element code is placed';
}
else {
//user is not logged in so don't echo the element
}
?>
This php block will be placed inside the container element where the element you want to show would normally be. Note that if the else section of the statement is empty you can leave it out.
This can also work for a specific id or class you want to apply to an element (like changing the background colour of a div) by inserting the block where the id or class definition is.
<div id="testdiv" <?php if(/*condition*/) {echo 'class="addedclass"';} ?> ><div>