使用正则表达式拆分字符串

Question

我想拆分字符串，其中任何字符都是空格或标点符号(不包括撇号)。下面的正则表达式按预期方式工作。

/[^a-z']/i

像I‘’ll和‘ll’t这样的词都被接受了，这很棒。

问题出在像'ere‘和'im’这样的词上，我想去掉开头的撇号，改成‘im’和‘ere’。

理想情况下，如果可能的话，我希望在regex模式中停止/删除它。

提前谢谢。

Answer 1

尝尝这个

$str = "Words like I'll and Didn't are accepted, which is great. 
        The problem is with words like 'ere and 'im";
print_r(preg_split("/'?[^a-z']+'?/i", $str));
//Array ( [0] => Words [1] => like [2] => I'll [3] => and [4] => Didn't ... 
//        [16] => ere [17] => and [18] => im )