function gp_sanitize_for_url($name)
{
$name = trim($name);
$name = gp_strtolower($name);
$name = preg_replace('/&.+?;/', '', $name);
// kill entities
$name = str_replace('.', '-', $name);
$name = preg_replace('|[#$%&~/.\\-;:=,?@\\[\\]+]|', '', $name);
$name = preg_replace('/\\s+/', '-', $name);
$name = preg_replace('|-+|', '-', $name);
$name = trim($name, '-');
return $name;
}
/**
* Sanitizes a string for use as a slug, replacing whitespace and a few other characters with dashes.
*
* Limits the output to alphanumeric characters, underscore (_), periods (.) and dash (-).
* Whitespace becomes a dash.
*
* @since 2.1.0
*
* @param string $slug The string to be sanitized for use as a slug.
*
* @return string The sanitized title.
*/
function gp_sanitize_slug($slug)
{
$slug = remove_accents($slug);
$slug = strip_tags($slug);
// Preserve escaped octets.
$slug = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $slug);
// Remove percent signs that are not part of an octet.
$slug = str_replace('%', '', $slug);
// Restore octets.
$slug = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $slug);
$slug = gp_strtolower($slug, 'UTF-8');
if (seems_utf8($slug)) {
$slug = utf8_uri_encode($slug, 200);
}
// Convert nbsp, ndash and mdash to hyphens.
$slug = str_replace(array('%c2%a0', '%e2%80%93', '%e2%80%94'), '-', $slug);
// Convert nbsp, ndash and mdash HTML entities to hyphens.
$slug = str_replace(array(' ', ' ', '–', '–', '—', '—'), '-', $slug);
// Strip these characters entirely.
$slug = str_replace(array('%c2%a1', '%c2%bf', '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba', '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d', '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f', '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2', '%c2%b4', '%cb%8a', '%cc%81', '%cd%81', '%cc%80', '%cc%84', '%cc%8c'), '', $slug);
// Convert times to x.
$slug = str_replace('%c3%97', 'x', $slug);
// Kill entities.
$slug = preg_replace('/&.+?;/', '', $slug);
$slug = preg_replace('/[^%a-z\\.0-9 _-]/', '', $slug);
$slug = preg_replace('/\\s+/', '-', $slug);
$slug = preg_replace('|-+|', '-', $slug);
$slug = trim($slug, '-');
return $slug;
}
