Question

我正在使用多种语言构建应用。

test.com/ -english index
test.com/ca - canadian english index
test.com/canada-promo - english version of canada promo page
test.com/ca/canada-promo - canadian english version of promo page

我该如何过滤？

抱歉，抱歉。实际上有4种语言（/ fr /和/ es /）。我希望能够从传递的url中确定语言。

Answer 1

test.com/(?:([a-z]{2})(?=$|/))?(?:/)?(.*)

说明：

test.com/  #match beginning boilerplate, replace with "^" if need be
(?:([a-z]{2})(?=$|/))?  #match two characters if followed by the end of line or slash
(?:/)? #consume the slash if there was one
(.*)   #the page

编辑：好的，我认为现在可行了。可能会有更优雅的解决方案。第一组是语言代码，第二组是页面。通过你提供的四个输入，它对我有用。

Answer 2

preg_match('^/((ca|fr|es)(/|$))?(.*)$', $url, $matches);
$lang = $matches[2];
if (!$lang) {
  $lang = 'en';
}
$url = $matches[4];

如何在正则表达式中执行此操作？

2 个答案: