php - 将字符串分解为标记，保持引用的 substr 完好无损

Question

我不知道我在哪里看到它，但谁能告诉我如何使用 php 和正则表达式完成此操作？

'this is a string "that has quoted text" inside.'

我希望能够像这样把它炸掉

[0]this
[1]is
[2]a
[3]string
[4]"that has quoted text"
[5]inside

保持引号不变。

Answer 1

你能试试下面的代码吗:

$str = 'this is a string  "that has quoted text" inside.';
var_dump ( preg_split('#\s*("[^"]*")\s*|\s+#', $str, -1 , PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) );

Output: 
array(6) {
  [0]=>
  string(4) "this"
  [1]=>
  string(2) "is"
  [2]=>
  string(1) "a"
  [3]=>
  string(6) "string"
  [4]=>
  string(22) ""that has quoted text""
  [5]=>
  string(7) "inside."
}

这是 above working code on dialpad 的链接

更新:要转义支持，请尝试:

preg_split('#\s*((?<!\\\\)"[^"]*")\s*|\s+#', $str, -1 , PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);