PHP:返回两个字符之间的字符串 [英] PHP: Return string between two characters

问题描述

我想在大字符串中使用关键字".这些关键字以 my_keyword 开头和结尾，并且是用户定义的.如何在一个大字符串中搜索并找到两个*字符之间的含义并返回每个实例?

I am wanting to use "keywords" within a large string. These keywords start and end using my_keyword and are user defined. How, within a large string, can I search and find what is between the two * characters and return each instance?

它可能会更改的原因是，部分关键字可以由用户定义，例如 page_date_Y ，它可能会显示创建页面的年份.

The reason it might change it, that parts of the keywords can be user defined, such as page_date_Y which might show the year in which the page was created.

因此，再次，我只需要进行搜索并返回那些*字符之间的内容.这可能吗，或者如果我不知道关键字"的长度或我可能是什么样，有没有更好的方法呢?

So, again, I just need to do a search and return what is between those * characters. Is this possible, or is there a better way of doing this if I don't know the "keyword" length or what i might be?

推荐答案

<?php
// keywords are between *
$str = "PHP is the *best*, its the *most popular* and *I* love it.";    
if(preg_match_all('/\*(.*?)\*/',$str,$match)) {            
        var_dump($match[1]);            
}
?>

输出:

array(3) {
  [0]=>
  string(4) "best"
  [1]=>
  string(12) "most popular"
  [2]=>
  string(1) "I"
}

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