AHREF from .txt file in PHP page

Ok, here is the issue I have. I have .txt files that populate the page with content. I want to go in and add a hyperlink to some of the anchor text in the text file. Obviously, if I have to split up .txt files then it will be a major pain in the behind. Here is an example of what happens when I add the <a href> tag to the .txt file. Any suggestions on how to fix this? Thanks.

 

I think it depends on the PHP code that gathers the content from the files, we will need it to help you.

 

I think this is the relevant part. I can muddle around in HTML but am very new to PHP.

<? 
			if(file_exists("files/".$page_name.".txt"))
			{
				$file_arr = file("files/".$page_name.".txt");
				for($line=0;$line<sizeof($file_arr);$line++)
				{	
					$curr_line = $file_arr[$line];
					$str = "***";
					$res = strncmp($curr_line, $str, 3);
					if($res==0)
					$i++;
		
					if($res!=0 && $i==($valpage-1))
					{
						$res = explode(":",$file_arr[$line]);
						if(count($res)>1)
						echo '<strong>'.$res[0].' : </strong>'.$res[1].'<br/>';
						else
						echo $curr_line.'<br/>';
					}	
				}	
			}
		?>

PHP: