/**
* Convert a String to URL, e.g., "Petty<br>theft" to "Petty-theft"
*
* @param String $text
* @param Int $length length of the output string
* @param String $language
* @param Boolean $file_name keep the "." from the extension e.g.: "imaäe.jpg" => "image.jpg"
* @param Boolean $removeWords remove some "words" -> set via "remove_words()"
* @param Boolean $strtolower use strtolower() at the end
* @param String $seperator define a new seperator for the words
*
* @return String
*/
public static function filter($text, $length = 200, $language = 'de', $file_name = false, $removeWords = false, $strtolower = false, $seperator = '-')
{
// seperator-fallback
if (!$seperator) {
$seperator = '-';
}
$text = preg_replace(self::$arrayToSeperator, $seperator, $text);
// 1) replace with $seperator
$text = UTF8::strip_tags($text);
// 2) remove all other html-tags
$text = self::downcode($text, $language);
// 3) use special language replacer
$text = preg_replace(self::$arrayToSeperator, $seperator, $text);
// 4) replace with $seperator, again
// remove all these words from the string before urlifying
if ($removeWords === true) {
$removeWordsSearch = '/\\b(' . join('|', self::get_remove_list($language)) . ')\\b/i';
} else {
$removeWordsSearch = '//';
}
// keep the "." from e.g.: a file-extension?
if ($file_name) {
$remove_pattern = '/[^' . $seperator . '.\\-a-zA-Z0-9\\s]/u';
} else {
$remove_pattern = '/[^' . $seperator . '\\-a-zA-Z0-9\\s]/u';
}
$text = preg_replace(array('`[' . $seperator . ']+`', '[^A-Za-z0-9]', $remove_pattern, '/[' . $seperator . '\\s]+/', '/^\\s+|\\s+$/', $removeWordsSearch), array($seperator, '', '', $seperator, '', ''), $text);
// convert to lowercase
if ($strtolower === true) {
$text = strtolower($text);
}
// trim "$seperator" from beginning and end of the string
$text = trim($text, $seperator);
// "substr" only if "$length" is set
if ($length && $length > 0) {
$text = (string) substr($text, 0, $length);
}
return $text;
}
