PHP DOM Parser：查找所有链接的文本并进行更改

Question

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);

Answer 1

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.