php - 替换字符串中所有出现的任何括号括起来的单词

Question

我通常自己解决 PHP 问题非常有效，但是对于这个特定问题，我似乎找不到可行的解决方案。

我有一个由标准文本组成的 $string，在文本中会有一些关键字被 [方括号] 包围，我想将它们转换为链接，但是将字符串与预定义的数组进行比较并不是一个简单的例子'known' 关键字并进行简单的替换，因为 [方括号] 的内容可以是任何内容。

例如，我需要以下内容:

John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include [A Gray Sky] and [Sophomore Effort].

应该改成如下:

John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include <a href="search.php?search=a+gray+sky">A Gray Sky</a> and <a href="search.php?search=sophomore+effort">Sophomore Effort</a>.

应该注意的是:

$string 将包含未知数量的 [括号内的单词]。

如果会引起问题，使用方括号不是必需的，但目前在我看来它是最方便的方法。

我不是要别人给我代码，我所需要的只是有人告诉我我应该调查什么样的 PHP 函数并指出我正确的方向!

非常感谢大家，也感谢Stackoverflow给我提问的机会!

Answer 1

$string = "John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include [A Gray Sky] and [Sophomore Effort].";

function rep_callback($match)
{
        $query = substr($match[0],1,-1);
        $query = urlencode($query);
        $link = '<a href="search.php?search='.$query.'">'.$match[0].'</a>';
        return $link;
}

echo $string."\n";
echo preg_replace_callback("/\[.+\]/U", "rep_callback", $string)."\n";

输出:

John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include [A Gray Sky] and [Sophomore Effort].
John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include <a href="search.php?search=A+Gray+Sky">[A Gray Sky]</a> and <a href="search.php?search=Sophomore+Effort">[Sophomore Effort]</a>.