可能重复:
如何将PHP preg_split字符串拆分为字母对
我该如何将这个字符串转换成以下形式的数组:
如何将PHP preg_split字符串拆分为字母对
我有一个看起来像这样的字符串:
$str = "How are you doing?";
我该如何将这个字符串转换成以下形式的数组:
$arr = array("Ho","w ","ar","r ","yo","u ","do","in","g?");