删除部分字符串 PHP

Question

我正在处理一些 RSS 数据。我正在尝试删除字符串的某些部分。

字符串是这样的：

<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>

我只想显示：

**THIS IS THE INFO I ACTUALLY WANT TO KEEP**

或

**<p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>**

我正在使用 PHP 并想将值存储为变量。

非常感谢您的帮助。

Answer 1

试试这个

$str = '<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>';
preg_match('~<p>(.*?)</p>~', $str, $matches);
var_dump($matches);

Answer 2

使用strip_tags：

$text = '<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>';
echo strip_tags($text);

Working Demo

Answer 3

使用strip_tags，如果要保留p标签，添加第二个参数<p>

    <?php
      //without p tag
      echo strip_tags('<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>');
      echo "\n";
      //with p tag
      echo strip_tags('<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>', '<p>');

和输出：

ei@localhost:~$ php test.php
THIS IS THE INFO I ACTUALLY WANT TO KEEP
<p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>

Answer 4

我认为您正在寻找 xhtml 标签以外的文本信息，您可以通过 php-示例-

中的 strip_tags($text) 来实现

$text = '<description><![CDATA[<div style="float:right;margin:0 0 1ex 1ex"><a href="/link/123" rel="nofollow" title="Link: www.example.com/testing-information"><img src="http://www.example.com/a/100/1000.jpg?hash=a38232k" alt="More info here"/></a></div><p>THIS IS THE INFO I ACTUALLY WANT TO KEEP</p>';
echo strip_tags($text);
echo "\n";

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