/**
* Cleans up text for special output.
*
* Namely for use inside 'title' attributes. Strips HTML, removes double-quotes (since
* that's what this demo uses for attributes), reduces all linebreaks and multiple
* spaces into a single space, and can shorten a string to a number of characters.
*
* @access public
* @param string $s The string of text to clean up.
* @param integer $length The number of characters to return in the description.
* @return string The cleaned up string.
*/
function cleanup($s, $length = 0)
{
// Convert all HTML entities to their character counterparts.
$s = html_entity_decode($s, ENT_QUOTES, 'UTF-8');
// Strip out HTML tags.
$s = strip_tags($s);
// Get rid of double quotes so they don't interfere with the title tag.
$s = str_replace('"', '', $s);
// Strip out superfluous whitespace and line breaks.
$s = preg_replace('/(\\s+)/', ' ', $s);
// Shorten the string to the number of characters requested (multibyte safe), and strip wrapping whitespace.
if ($length > 0 && strlen($s) > $length) {
$s = trim(newsblocks::substr($s, 0, $length, 'UTF-8')) . '…';
}
// Return the value.
return $s;
}
