PHP DOM解析器:查找所有链接的文本并更改它 - PHP DOM Parser : find text of all links and change it

PHP DOM Parser : find text of all links and change it

本文关键字：文本链接 DOM 查找 PHP | 更新日期: 2023-09-27

我是PHO DOM解析器新手。我有一个这样的字符串:

$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";

和我想改变链接中的所有文本(在这个例子中，Marco和链接)与自定义字符串，让说hello。

如何在PHP上实现?目前，我只将XDOM/XPATH解析器初始化为:

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

这里您对xpath有了很好的了解，下面的示例展示了如何选择<a>元素的所有textnode子元素(DOMText ^Docs)并更改它们的文本:

$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';
}

如果有帮助请告诉我

试试phpQuery (http://code.google.com/p/phpquery/):

<?php
    $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';
    require('phpQuery.php');
    $doc = phpQuery::newDocument($coded_string);
    $doc['a']->html('hello');
    print $doc;
?>

打印:

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

<?php
$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";
$dom_document = new DOMDocument();      
$dom_document->loadHTML($coded_string);
$dom_xpath = new DOMXpath($dom_document);
$links = $dom_xpath->query('//a');
foreach ($links as $link)
{
    $anchorText[] = $link->nodeValue;
}
$newCodedString = str_replace($anchorText, 'hello', $coded_string);
echo $newCodedString;