If you want to extract the text content of a HTML document (eg - get rid of all the HTML and Javascript), try the following code:
<?php
// $document should contain an HTML document.
// This will remove HTML tags, javascript sections
// and white space. It will also convert some
// common HTML entities to their text equivalent.
$search = array ("'<script[^>]*?>.*?</script>'si", // Strip out javascript
"'<[/!]*?[^<>]*?>'si", // Strip out HTML tags
"'([rn])[s]+'", // Strip out white space
"'&(quot|#34);'i", // Replace HTML entities
"'&(amp|#38);'i",
"'&(lt|#60);'i",
"'&(gt|#62);'i",
"'&(nbsp|#160);'i",
"'&(iexcl|#161);'i",
"'&(cent|#162);'i",
"'&(pound|#163);'i",
"'&(copy|#169);'i",
"'&#(d+);'e"); // evaluate as php
$replace = array ("",
"",
"\1",
"\"",
"&",
"<",
">",
" ",
chr(161),
chr(162),
chr(163),
chr(169),
"chr(\1)");
$text = preg_replace($search, $replace, $document);
?>
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