Question

我通常非常有效地解决PHP问题，但是对于这个特定问题，我似乎无法找到可行的解决方案。

我有一个由标准文本组成的$字符串，在文本中会有某些关键字被[方括号]包围，我想将其转换为链接，但这并不是将字符串与字符串进行比较的简单情况预定义的'已知'关键字数组并进行简单替换，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].

应该变成以下内容：

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：

$ string将包含未知数量的[括号内的单词]。
使用方括号不是必要的，如果它会引起问题，但目前在我看来这是最方便的方法。

我不是要求别人给我代码，我需要的是告诉我应该调查什么样的PHP函数并指出我正确的方向！

非常感谢你们，感谢Stackoverflow给我机会提问！

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>.

替换字符串中所有出现的括号括起的单词

1 个答案: