php preg_replace_callback block 引用正则表达式

Question

我正在尝试创建一个 REGEX

输入

> quote
the rest of it

> another paragraph
the rest of it

和OUTPUT

quote the rest of it

another paragraph the rest of it

生成的 HTML 为

<blockquote>
<p>quote
the rest of it</p>
<p>another paragraph
the rest of it</p>
</blockquote>

下面是我的

$text = preg_replace_callback('/^>(.*)(...)$/m',function($matches){
    return '<blockquote>'.$matches[1].'</blockquote>';
},$text);

DEMO

如有任何帮助或建议，我们将不胜感激

Answer 1

这是给定示例的可能解决方案。

$text = "> quote
the rest of it

> another paragraph
the rest of it";


preg_match_all('/^>([\w\s]+)/m', $text, $matches);

$out = $text ;
if (!empty($matches)) {
    $out = '<blockquote>';
    foreach ($matches[1] as $match) {
        $out .= '<p>'.trim($match).'</p>';
    }
    $out .= '</blockquote>';
}

echo $out ;

输出:

<blockquote><p>quote 
the rest of it</p><p>another paragraph
the rest of it</p></blockquote>