替换字符串中任何括号括起来的单词的所有ocurrence
替换字符串中任何括号括起来的单词的所有ocurrence
提问于 2012-05-08 02:56:03
我通常很有效率地独自解决PHP问题，但是对于这个特定的问题，我似乎找不到一个可行的解决方案。
我有一个由标准文本组成的$string，在文本中将有一些被方括号包围的关键字，我想将其转换为链接，但这并不是将字符串与预定义的‘已知’关键字数组进行比较并进行简单替换的简单情况，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].应改为：
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>.应当指出的是：
- $string将包含一个未知数量的方括号内的单词。如果有问题，使用方括号的
- 不是必要的，但就目前而言，这似乎是最方便的方法。--
我不是要别人给我代码，我只需要有人告诉我我应该研究什么样的PHP函数，并指出正确的方向！
非常感谢大家，谢谢斯塔克溢流给我这个机会去问！
回答 1
Stack Overflow用户
回答已采纳
发布于 2012-05-08 03:06:08
$string = "John Roberts is a jazz musician from Florida born in 1934. Some of his notable works include [A Gray Sky] and [Sophomore Effort].";
function rep_callback($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>.页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/10491967
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