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<?php
/**
* @package Regular Labs Library
* @version 23.9.3039
*
* @author Peter van Westen <info@regularlabs.com>
* @link https://regularlabs.com
* @copyright Copyright © 2023 Regular Labs All Rights Reserved
* @license GNU General Public License version 2 or later
*/
namespace RegularLabs\Library;
defined('_JEXEC') or die;
class Title
{
/**
* Cleans the string to make it usable as a title
*
* @param string $string
* @param bool $strip_tags
* @param bool $strip_spaces
*
* @return string
*/
public static function clean($string = '', $strip_tags = false, $strip_spaces = true)
{
if (empty($string))
{
return '';
}
// remove comment tags
$string = RegEx::replace('<\!--.*?-->', '', $string);
// replace weird whitespace
$string = str_replace(chr(194) . chr(160), ' ', $string);
if ($strip_tags)
{
// remove svgs
$string = RegEx::replace('<svg.*?</svg>', '', $string);
// remove html tags
$string = RegEx::replace('</?[a-z][^>]*>', '', $string);
// remove comments tags
$string = RegEx::replace('<\!--.*?-->', '', $string);
}
if ($strip_spaces)
{
// Replace html spaces
$string = str_replace([' ', ' '], ' ', $string);
// Remove duplicate whitespace
$string = RegEx::replace('[ \n\r\t]+', ' ', $string);
}
return trim($string);
}
/**
* Creates an array of different syntaxes of titles to match against a url variable
*
* @param array $titles
*
* @return array
*/
public static function getUrlMatches($titles = [])
{
$matches = [];
foreach ($titles as $title)
{
$matches[] = $title;
$matches[] = StringHelper::strtolower($title);
}
$matches = array_unique($matches);
foreach ($matches as $title)
{
$matches[] = htmlspecialchars(StringHelper::html_entity_decoder($title));
}
$matches = array_unique($matches);
foreach ($matches as $title)
{
$matches[] = urlencode($title);
if (function_exists('mb_convert_encoding'))
{
$matches[] = mb_convert_encoding($title, 'ISO-8859-1', 'UTF-8');
}
$matches[] = str_replace(' ', '', $title);
$matches[] = trim(RegEx::replace('[^a-z0-9]', '', $title));
$matches[] = trim(RegEx::replace('[^a-z]', '', $title));
}
$matches = array_unique($matches);
foreach ($matches as $i => $title)
{
$matches[$i] = trim(str_replace('?', '', $title));
}
$matches = array_diff(array_unique($matches), ['', '-']);
return $matches;
}
}