PHP/HTML/HTML String
Escape HTML char
<source lang="html4strict">
<?php
$input = "I just can"t get <<enough>> of PHP!"; echo htmlspecialchars($input);
?>
</source>
HTML tag strip
<source lang="html4strict">
<?php
$input = "This <a href="http://www.wbex.ru/">wbex</a> is !"; echo strip_tags($input, "<a>");
?>
</source>
strip_tags: strip tags from html string
<source lang="html4strict">
<?php
$input = "Email <a href="spammer@example.ru">spammer@example.ru</a>"; echo strip_tags($input);
?>
</source>