You can also use [man]strip_tags()[/man] to fully remove the tags...
<?php
// here's a little string with html in it:
$str = "I have a little <b>site</b> with news!<br/>\n";
$str .= "<a href=\"http://www.site.com/\" target=\"_blank\">Visit my site</a>\n";
// remove the html:
$str = strip_tags( $str );
// print the string:
echo $str;
?>