如果你安装了intl扩展，你可以使用Transliterator::transliterate函数轻松创建一个slug。

$string = 'Namnet på bildtävlingen';

$rules = <<<'RULES'
    :: Any-Latin;
    :: NFD;
    :: [:Nonspacing Mark:] Remove;
    :: NFC;
    :: [^-[:^Punctuation:]] Remove;
    :: Lower();
    [:^L:] { [-] > ;
    [-] } [:^L:] > ;
    [-[:Separator:]]+ > '-';
RULES;

$slug = \Transliterator::createFromRules($rules)
    ->transliterate( $string );

echo $slug; // namnet-pa-bildtavlingen

demo

请注意，这种解决方案适用于任何字母表，并且非常灵活。

在Laravel 8中是:

Str::slug('Hola como te va', '-');

// hola-como-te-va

下面是制作鼻涕虫的简单方法

function convertURLs($value){
$delimiter = '-';
$slug = strtolower(trim(preg_replace('/[\s-]+/', $delimiter, preg_replace('/[^A-Za-z0-9-]+/', $delimiter, preg_replace('/[&]/', 'and', preg_replace('/[\']/', '', iconv('UTF-8', 'ASCII//TRANSLIT', $value))))), $delimiter));
return $slug;}

与其用冗长的替换，不如试试下面这个:

public static function slugify($text, string $divider = '-')
{
  // replace non letter or digits by divider
  $text = preg_replace('~[^\pL\d]+~u', $divider, $text);

  // transliterate
  $text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);

  // remove unwanted characters
  $text = preg_replace('~[^-\w]+~', '', $text);

  // trim
  $text = trim($text, $divider);

  // remove duplicate divider
  $text = preg_replace('~-+~', $divider, $text);

  // lowercase
  $text = strtolower($text);

  if (empty($text)) {
    return 'n-a';
  }

  return $text;
}

这是基于Symfony的Jobeet教程。

如果你的弹头只包含A-Za-z0-9-那么这对你来说是可以的

function sanitize_slug($text)
{
    $text = preg_replace('/[^A-Za-z0-9-]+/', '-', $text);
    $text = trim($text, '-');
    $text = preg_replace('~-+~', '-', $text);
    return $text;
}

这是另一个例子，例如“Title with strange characters ééé A X Z”变成了“Title -with-strange-characters-ee - A - X - Z”。

/**
 * Function used to create a slug associated to an "ugly" string.
 *
 * @param string $string the string to transform.
 *
 * @return string the resulting slug.
 */
public static function createSlug($string) {

    $table = array(
            'Š'=>'S', 'š'=>'s', 'Đ'=>'Dj', 'đ'=>'dj', 'Ž'=>'Z', 'ž'=>'z', 'Č'=>'C', 'č'=>'c', 'Ć'=>'C', 'ć'=>'c',
            'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
            'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O',
            'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U', 'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss',
            'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c', 'è'=>'e', 'é'=>'e',
            'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o',
            'ô'=>'o', 'õ'=>'o', 'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'ý'=>'y', 'þ'=>'b',
            'ÿ'=>'y', 'Ŕ'=>'R', 'ŕ'=>'r', '/' => '-', ' ' => '-'
    );

    // -- Remove duplicated spaces
    $stripped = preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $string);

    // -- Returns the slug
    return strtolower(strtr($string, $table));


}