使用 PHP 解析时，正则表达式未捕获新行或引号

Question

因此，我正在使用 PHP 尝试将文档分成多个部分。下面是一个示例文本。Preface The idea for this piece of literature came from the Narcotics Anonymous Fellowship itself.~~~Preface~~~Step One"We admitted we were powerless over our addiction, that our lives had become unmanageable." ~~~Step One~~~我需要的是在我需要插入数组的符号之前的任何文本。~~~该数组应该具有符号之间的任何键。~~~我还想确保捕获所有新行和引号。但是，我不是 100% 确定这是可能的。基本上我使用这些~~~符号作为文本中的中断。该文件长约 96 页。因此，我希望最终能够将结果放入单独的文本文件中，其名称等于数组中的键，值作为所述文本文件中的内容。例子：$array = [    'Preface' => 'Preface The idea for this piece of literature came from the Narcotics Anonymous Fellowship itself.',    'Step One' => 'Step One\n\"We admitted we were powerless over our addiction, that our lives had become unmanageable.\"']我被卡住了，因为我没有捕获新行或引号。

Answer 1

您可以使用此正则表达式（带有s标志，以允许.匹配换行符）来提取您想要的部分。它会查找最少量的文本，(.*?)后跟~~~一个部分名称([\w ]+)和~~~.

(.*?)~~~([\w ]+)~~~

我们用于preg_match_all在文本中查找与此正则表达式的所有匹配项（每个匹配项紧随前一个匹配项开始），然后用于array_combine将部分名称与其文本组合：

preg_match_all('/(.*?)~~~([\w ]+)~~~/s', $text, $matches);

$parts = array_combine($matches[2], $matches[1]);

print_r($parts);

输出

Array

(

    [Preface] => Preface The idea for this piece of literature came from the Narcotics Anonymous Fellowship itself.

    [Step One] => Step One

"We admitted we were powerless over our addiction, that our lives had become unmanageable." 

)