string strip_tags ( string html_text [, string allowed_tags] ) strips HTML and PHP tags from a string

 
<?
    $input = "<blink><strong>Hello!</strong></blink>";
    $a = strip_tags($input);
    $b = strip_tags($input, "<strong><em>");
?>

1.	strip_tags
2.	strip_tags() function removes all HTML and PHP tags from string, leaving only the text entities.
3.	strip_tags() function, first argument is the text to transform.
4.	strip_tags.php
5.	strip_tags.php
6.	Stripping HTML tags from a string
7.	Strip all except a few tags

string strip_tags ( string html_text [, string allowed_tags] ) strips HTML and PHP tags from a string : strip_tags « String « PHP