PHP DOM解析器：查找所有链接的文本并进行更改 [英] PHP DOM Parser : find text of all links and change it

问题描述

我刚刚进入PHO DOM Parser。我有一个这样的字符串：

  $ coded_string =你好，我的名字是< a href =link1> Marco< / a>我希望< strong>更改< / strong> all< a href =link2>链接< / a>与自定义文本; 
  

我想更改链接中的所有文本（在示例中， Marco 和链接）与自定义字符串，让我们说 hello 。

我该怎么做在PHP上？目前我只启动了XDOM / XPATH解析器：

  $ dom_document = new DOMDocument（）; 
 $ dom_document-> loadHTML（$ coded_string）; 
 $ dom_xpath = new DOMXpath（$ dom_document）; 
  

解决方案

你对这里的xpath有好的感觉，示例显示如何选择所有文本节点子项（ DOMText < a> 元素的c $ c> ^文档 ） / p>

  $ dom_document = new DOMDocument（）; 
 $ dom_document-> loadHTML（$ coded_string）; 
 $ dom_xpath = new DOMXpath（$ dom_document）; 
 
 $ texts = $ dom_xpath-> query（'// a / child :: text（）'）; 
 foreach（$ texts as $ text）
 {
 $ text-> data ='hello'; 
} 
  

让我知道这是否有帮助。

I'm new into PHO DOM Parser. I have a string like this :

$coded_string = "Hello, my name is <a href="link1">Marco</a> and I'd like to <strong>change</strong> all <a href="link2">links</a> with a custom text";

and I'd like to change all text in the links (in the example, Marco and links) with a custom string, let say hello.

How can I do it on PHP? At the moment I only initilized the XDOM/XPATH parser as :

$dom_document = new DOMDocument();      
$dom_document->loadHTML($coded_string);
$dom_xpath = new DOMXpath($dom_document);

解决方案

You have a good sense for xpath here, the following example shows how to select all textnode children (DOMText^Docs) of the <a> elements and change their text:

$dom_document = new DOMDocument();      
$dom_document->loadHTML($coded_string);
$dom_xpath = new DOMXpath($dom_document);

$texts = $dom_xpath->query('//a/child::text()');
foreach ($texts as $text)
{
    $text->data = 'hello';
}

Let me know if this is helpful.

这篇关于PHP DOM解析器：查找所有链接的文本并进行更改的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！