Question

我想将普通的链接标记转换为图像标记，

我将如何转换以下内容，

<a href="images/first.jpg">This is an image.</a>

<a href="images/second.jpg">This is yet another image.</a>

<a href="images/third.jpg">Another image.</a>

使用php进入这个，

<img src="dir/images/first.jpg">This is an image.

<img src="dir/images/second.jpg">This is yet another image.

<img src="dir/images/third.jpg">Another image.

源中可以有任意数量的链接。

感谢。

Answer 1

使用str_replace时，它应该是

$source = str_replace('<a href="images/', '<img src="dir/images/', $source);

和

$source = str_replace('</a>', '', $source);

Answer 2

使用正则表达式：

    $text = preg_replace( '^<a href="(.+)">(.+)</a>^', '<img src="dir/$1">$2', $text );

输出：

    <img src="dir/images/first.jpg">This is an image.

    <img src="dir/images/second.jpg">This is yet another image.

    <img src="dir/images/third.jpg">Another image.

Answer 3

使用HTML解析器：

<?php

$content = '<a href="images/first.jpg">This is an image.</a>

<a href="images/second.jpg">This is yet another image.</a>

<a href="images/third.jpg">Another image.</a>';

$html = new DOMDocument();

$html->loadHTML($content);

$links = $html->getElementsByTagName('a');

$new_html = new DOMDocument();

foreach($links as $link) {
    $img = $new_html->createElement('img');
    $img->setAttribute('src', 'dir/'.$link->getAttribute('href'));
    $new_html->appendChild($img);
    $new_html->appendChild($new_html->createTextNode($link->nodeValue));
}


echo $new_html->saveHTML();

Answer 4

$text = '<a href="images/first.jpg">This is an image.</a>
<a href="images/second.jpg">This is yet another image.</a>
<a href="images/third.jpg">Another image.</a>';

$text = preg_replace('#<a.+?href="([^"]+)".*?>(.+?)</a>#i', '<img src="dir/\1" alt="">\2', $text);
echo $text;

这给出了：

<img src="dir/images/first.jpg" alt="">This is an image.
<img src="dir/images/second.jpg" alt="">This is yet another image.
<img src="dir/images/third.jpg" alt="">Another image.

将标准链接转换为图像链接

4 个答案: