I am currently trying to echo a text value from a variable which contains html-style tags. **<...>** 

```
$string = "variable_name";
$tag_str = "<".$string.">";
echo $tag_str;

```

currently this echo's as nothing as it believes it is html code. How would I go about echoing `<variable_name>` to the page so it is **viewable** and not interpreted as code by the browser?