PHP 字符串分割

发布于 2024-08-27 18:19:53 字数 294 浏览 7 评论 0原文

我需要将字符串拆分为 2,2,3,3 个字符的块，并且能够通过使用 unpack 在 Perl 中执行此操作：

unpack("A2A2A3A3", 'thisisloremipsum');

但是相同的函数在 PHP 中不起作用，它给出以下输出：

Array
(
    [A2A3A3] => th
)

我怎样才能做到这一点使用解包？我不想为它编写一个函数，它应该可以通过 unpack 但如何实现呢？

提前致谢，

原文

I need to split a string into chunks of 2,2,3,3 characters and was able to do so in Perl by using unpack:

unpack("A2A2A3A3", 'thisisloremipsum');

However the same function does not work in PHP, it gives this output:

Array
(
    [A2A3A3] => th
)

How can I do this by using unpack? I don't want to write a function for it, it should be possible with unpack but how?

Thanks in advance,

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

你爱我像她 2024-09-03 18:19:53

引用 unpack 的手册页：

unpack() 工作方式略有不同
来自 Perl 的解压数据是
存储在关联数组中。

要实现这一目标，您必须
命名不同的格式代码并用斜杠/分隔它们。

Which means that, using something like this :

$a = unpack("A2first/A2second/A3third/A3fourth", 'thisisloremipsum');
var_dump($a);

您将得到以下输出：

array
  'first' => string 'th' (length=2)
  'second' => string 'is' (length=2)
  'third' => string 'isl' (length=3)
  'fourth' => string 'ore' (length=3)

Quoting the manual page of unpack :

unpack() works slightly different
from Perl as the unpacked data is
stored in an associative array.

To accomplish this you have to
name the different format codes and separate them by a slash /.

Which means that, using something like this :

$a = unpack("A2first/A2second/A3third/A3fourth", 'thisisloremipsum');
var_dump($a);

You'll get the following output :

array
  'first' => string 'th' (length=2)
  'second' => string 'is' (length=2)
  'third' => string 'isl' (length=3)
  'fourth' => string 'ore' (length=3)

回复收藏 0 原文