preg_match_all 两个词，中间允许字符

Question

我想做的是，给定一个字符串，例如

trying to download some music, give me the details to download the music

通过 preg_match_all 得到一个匹配结果，这会给我类似

[0][0] => download some music
[0][1] => some
[1][0] => download the music
[1][1] => the

但我无法做到这一点。我正在使用这种模式

§download(.*)music(.*)§

但问题是它只匹配第一个 download（来自 download some music 的那个）和最后一个 music（来自 download the music 的那个），而我的目标是找到所有出现的地方并获取两个单词之间的字符（它实际上应该适用于任意数量的单词，但让我们从两个开始）。

感谢任何帮助，谢谢！ :)

UPDATE: After having the issue solved, I wrote an article on how this kind of regex can be used to make a gentle pattern match (or, rather, to compute pattern relevance in a given text): http://www.thecrowned.org/method-for-pattern-relevance-in-text

Answer 1

\bdownload\b(.*?)\bmusic\b

              ^^

做一个 non greedy search.See 演示。

https://regex101.com/r/fM9lY3/29

$re = "/\bdownload\b(.*?)\bmusic\b/"; 
$str = "trying to download some music, give me the details to download the music"; 

preg_match_all($re, $str, $matches);

preg_match_all 两个词，中间允许字符

preg_match_all for two words, allowing chars in the middle

php

regex

pattern-matching