我对preg_replace有疑问。我在WordPress中有以下HTML:
<img width="256" height="256" src="http://localhost/wp-content/uploads/2015/08/spiderman-avatar.png" class="attachment-post-thumbnail wp-post-image" alt="spiderman-avatar">
我将其更改为以下内容:
<img src="" data-breakpoint="http://localhost/wp-content/uploads/2015/08/" data-img="theme-{folder}.jpg" class="srcbox" alt="spiderman-avatar">
使用以下preg_replace:
$html = preg_replace(
'/src="(https?:\/\/.+\/)(.+\-)([0-9]+)(.jpg|.jpeg|.png|.gif)"/',
'src="" data-breakpoint="$1" data-img="$2{folder}$4"', // Replace and split src attribute into two new attributes
preg_replace(
'/(width|height)="[0-9]*"/',
'', // Remove width and height attributes
preg_replace(
'/<img ?([^>]*)class="([^"]*)"?/',
'<img $1 class="$2 srcbox"', // Add class srcbox to class attribute
$html
)
)
);
我觉得我写了一些严重的慢代码,可以在一个preg_replace中完成。
Chris85提到了HTML解析器,所以我发现了这个并且到目前为止得到了这个:
http://nimishprabhu.com/top-10-best-usage-examples-php-simple-html-dom-parser.html
include('simple_html_dom.php');
$html = file_get_html($html);
从这里开始,我可以遍历所有图像并更改th
属性。但是我如何把新元素放在哪里呢?