将英文双引号转换为法文报价

Question

如何在php中转换此字符串，例如

$str = 'Hello world "some text"'

到

'Hello world «some text»'

Answer 1

像这样：

<?php
   $str = 'Hello world "some text"';
   $regex = '/"(.*?)"/';
   $subst = '«$1»';
   $result = preg_replace($regex, $subst, $str);
   echo $result;
?>