/**
* Clean a slug posted by the user
* @param string $slug The slug provided by the user
* @return string
* @since 2.4b5
*/
static function PostedSlug($string, $from_label = false)
{
includeFile('tool/strings.php');
// Remove control characters
$string = preg_replace('#[[:cntrl:]]#u', '', $string);
// [\x00-\x1F\x7F]
//illegal characters
$string = str_replace(array('?', '*', ':', '|'), array('', '', '', ''), $string);
//change known entities to their character equivalent
$string = gp_strings::entity_unescape($string);
//if it's from a label, remove any html
if ($from_label) {
$string = admin_tools::LabelHtml($string);
$string = strip_tags($string);
//after removing tags, unescape special characters
$string = str_replace(array('<', '>', '"', ''', '&'), array('<', '>', '"', "'", '&'), $string);
}
// # character after unescape for entities and unescape of special chacters when $from_label is true
$string = str_replace('#', '', $string);
//slashes
$string = admin_tools::SlugSlashes($string);
return str_replace(' ', '_', $string);
}
/**
* Convert characters to their entity equivalent
* @since 2.5b1
*/
static function entity_escape($string)
{
$all_entities = gp_strings::all_entities();
return str_replace(array_keys($all_entities), array_values($all_entities), $string);
}
