带逗号和 -（连字符）的多个爆炸字符

发布于 2024-09-19 07:17:41 字数 199 浏览 9 评论 0原文

我想分解所有字符串：

空格（\n \t 等）
逗号连
字符（小破折号）。像这样>> -

但这不起作用：

$keywords = explode("\n\t\r\a,-", "my string");

该怎么做？

原文

I want to explode a string for all:

whitespaces (\n \t etc)
comma
hyphen (small dash). Like this >> -

But this does not work:

$keywords = explode("\n\t\r\a,-", "my string");

How to do that?

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伪装你 2024-09-26 07:17:41

爆炸做不到这一点。有一个很好的函数，名为 preg_split 。这样做：

$keywords = preg_split("/[\s,-]+/", "This-sign, is why we can't have nice things");
var_dump($keywords);

输出：

  array
  0 => string 'This' (length=4)
  1 => string 'sign' (length=4)
  2 => string 'is' (length=2)
  3 => string 'why' (length=3)
  4 => string 'we' (length=2)
  5 => string 'can't' (length=5)
  6 => string 'have' (length=4)
  7 => string 'nice' (length=4)
  8 => string 'things' (length=6)

顺便说一句，不要使用 split，它已被弃用。

Explode can't do that. There is a nice function called preg_split for that. Do it like this:

$keywords = preg_split("/[\s,-]+/", "This-sign, is why we can't have nice things");
var_dump($keywords);

This outputs:

  array
  0 => string 'This' (length=4)
  1 => string 'sign' (length=4)
  2 => string 'is' (length=2)
  3 => string 'why' (length=3)
  4 => string 'we' (length=2)
  5 => string 'can't' (length=5)
  6 => string 'have' (length=4)
  7 => string 'nice' (length=4)
  8 => string 'things' (length=6)

BTW, do not use split, it is deprecated.

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后eg是否自 2024-09-26 07:17:41

...或者，如果您不喜欢正则表达式，但仍然想爆炸一些东西，您可以在爆炸之前用一个字符替换多个字符：

$keywords = explode("-", str_replace(array("\n", "\t", "\r", "\a", ",", "-"), "-", 
  "my string\nIt contains text.\rAnd several\ntypes of new-lines.\tAnd tabs."));
var_dump($keywords);

这会导致：

array(6) {
  [0]=>
  string(9) "my string"
  [1]=>
  string(17) "It contains text."
  [2]=>
  string(11) "And several"
  [3]=>
  string(12) "types of new"
  [4]=>
  string(6) "lines."
  [5]=>
  string(9) "And tabs."
}

... or if you don't like regexes and you still want to explode stuff, you could replace multiple characters with just one character before your explosion:

$keywords = explode("-", str_replace(array("\n", "\t", "\r", "\a", ",", "-"), "-", 
  "my string\nIt contains text.\rAnd several\ntypes of new-lines.\tAnd tabs."));
var_dump($keywords);

This blows into:

array(6) {
  [0]=>
  string(9) "my string"
  [1]=>
  string(17) "It contains text."
  [2]=>
  string(11) "And several"
  [3]=>
  string(12) "types of new"
  [4]=>
  string(6) "lines."
  [5]=>
  string(9) "And tabs."
}

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